Loose Gemstones | US Auction Brokers - U.S. Auction Brokers

Loose Gemstones

Precious Stones

Lot: 3897055
Magnificent Certified 4.09 Carat Cushion Modified Brilliant Cut Lab Diamond. F/VS1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896999
IGI Certified 4 Carat Lab-Grown Diamond showcasing exceptional brilliance and precision. Graded F color and VS1 clarity, this exquisite diamond exhibits remarkable sparkle, fire, and transparency. Expertly cut to highlight its radiance, it embodies both modern innovation and timeless beauty. Accompanied by an official IGI Certificate verifying its superior quality and craftsmanship.
Current Bid:
Lot: 3897060
Very High Quality Certified 7.06 Carat Emerald Cut Lab Diamond. G/VVS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896998
IGI Certified 4.14 Carat Lab-Grown Diamond showcasing exceptional brilliance and precision. Graded Fancy Vivid Yellow color and SI1 clarity, this exquisite diamond exhibits remarkable sparkle, fire, and transparency. Expertly cut to highlight its radiance, it embodies both modern innovation and timeless beauty. Accompanied by an official IGI Certificate verifying its superior quality and craftsmanship.
Current Bid:
Lot: 3897047
Remarkable Certified 4.06 Carat Oval Cut Lab Diamond. F/VS1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897048
Unbelievable Certified 5.45 Carat Rectangular Modified Brilliant Cut Lab Diamond. F/SI1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897062
Very High Quality Certified 5.43 Carat Round Brilliant Cut Lab Diamond. F/VS1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897054
Unbelievable Certified 5.08 Carat Cushion Modified Brilliant Cut Lab Diamond. G/VS1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896863
Here we have 50 stunning examples of some of the rarest gemstones in the world, Russian Alexandrite! Each piece features a resting light hunter green color that glows through a smoky body with a superior luster, but that all changes when the lighting changes. You can see any variation of green, steely gray, or touches of blue in normal lighting, and they turn vivid pink under UV lighting! They feature well matched round cuts measuring 1.5mm to 2mm each, and with a Moh's hardness of 8.5 they are durable enough to be set for daily wear. Untreated! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897011
Magnificent High quality Lab Diamond Emerald Cut, 1.34 CT, VS1/E. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896897
This is an incredible find. It starts with a violet red hue with just a splash of pink in its undertone. Then you add to that the slight shimmer of a silver sheen that presents during movement. And do you know where that sheen comes from? Actual silver in the gemstone. Over millions of years, this ruby's development included a mineral called proustite, which is a silver containing mineral that gives it this remarkable attribute. And because of the strong chromium content, (the mineral that gives rubies their red color) the silver shimmer is touched with pink and violet! And it even highlights this rubies visible crystal growth pattern! And it's all natural! And covering this whole unique display is a premium polished luster that reflects light off of every facet creating a twinkling effect. Finally, we have the cut of the ruby. The strong saturation and semi transparency of this piece allowed the gem cutter to give it a pendant cut without losing any color, creating a larger surface area and giving it the illusion of being a much larger gemstone. It measures an impressive 12.2mm x 8.3mm x 3.3mm! And with a Mohs hardness rating of 9 out of 10, this heirloom quality ruby is perfect for daily wear now, and for generations to come. Sourced from Winza, Tanzania. Untreated!!! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3895239
Tourmaline comes in so many colors - naturally - there is simply no room for boredom. This lot of 12 gems has a total weight of 4.03 cts.  Lots of color! Treatment – none tourmaline lot of 12, 4.03 cts @ $35.00/ct.
Current Bid:
Lot: 3897029
Magnificent High quality Lab Diamond Rectangular Modified Brilliant Cut, 1.52 CT, VS2/F. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3895252
Robust color make this tourmaline so attractive! This faceted round natural tourmaline is unusually large at 9.5mm. It weighs 3.44 cts.  Lots of sparkle! Treatment: none
Current Bid:
Lot: 3896875
Are you looking for some high fire sparkle? Well move along, because this isn't that kind of gemstone. This is the kind of gemstone that shows quiet refinement, deep thought, and quiet luxury. This is beautifully cut tourmaline with deep, rich color and premium VVS clarity. The facets of this piece are crisp, and its superior luster shimmers off of each one of them. It measures 10mm x 7.7mm x 5.3mm, and is untreated. Sourced from Mozambique. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3895243
Stunning and intense color in natural rhodolite garnet! This faceted round matched pair measure 6.5mm, with a total weight of 2.66 cts.  Fine cutting of fine material. Treatment: none
Current Bid:
Lot: 3897802
Experience unmatched brilliance with this exquisite 4.64 carat lab-grown diamond. Graded D color for its exceptional whiteness and VVS2 clarity for near-flawless purity, this loose stone is expertly cut to maximize fire and sparkle. Ethically created and visually stunning, it's the perfect centerpiece for a custom engagement ring or fine jewelry investment. IGI Certified.
Current Bid:
Lot: 3896865
Look at the cut! Look at the color! Look at the clarity! Do we need to say more? Probably not, but you know we will! Presented here is a rare example of orange amber tourmaline in one of its highest forms. You have color saturation that is rich and velvety with a hue reminiscent of spiced oranges through VS clarity that is a premium for this color. This is held in a beautifully faceted cushion cut with rounded edges set against a superior luster that glistens off of each facet, making it unique among this rare gem type. It measures 8.7mm x 6.5mm x 5.8mm, and is all natural with no treatments. Sourced from Tanzania. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3896866
How is your pendant game? A little underwhelming? Well don't worry ladies and gentlemen, we've got you covered. Presented here is an unbelievable crystal clear white quartz with pristine VS clarity! And it's pendant cut! And it's double cut! That means that it shows the same faceting on the front as it does the back. Or front. Other front? It doesn't matter, its got two fronts! You can't set it wrong, and if it gets turned around while you're wearing, it's still the front! Science! Now look at the video. This gemstone is so clean that it almost disappears when you tilt it. And that's no small feat since it measures a whopping 40mm x 20mm x 5.4mm, so don't miss this impressive piece! Sourced from Brazil. Untreated. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897866
Unbelievable Certified 2.05 Carat Rectangular Modified Brilliant Cut Lab Diamond. F/VVS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897862
Unbelievable Certified 2.1 Carat Pear Brilliant Cut Lab Diamond. F/VVS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897009
Magnificent High quality Lab Diamond Marquise Brilliant Cut, 2.75 CT, VVS2/E. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897049
Very High Quality Certified 5.11 Carat Rectangular Modified Brilliant Cut Lab Diamond. F/SI1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896887
This stunning 5.73ct London blue topaz showcases the deep and vivid color that is the hallmark of these highly sought after gemstones with preferred medium saturation. It was masterfully cut with tight faceting and beautiful symmetry creating non-stop full bodied flashing through premium VS clarity. Measuring 11.8mm x 9.8mm x 6.5mm, this Brazilian gemstone is ready for immediate setting so you will be ready to make an impression with its distinctive London blue hue where ever you go. Don't miss this distinctive gemstone!!! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3895241
Sweet ruby - there's so much to love here! This matched pair of faceted round gems measure 4mm and have a total weight of 66 points.  So pretty! Treatment: heat only.  No fillers, no diffusion treatment, not irradiated.
Current Bid:
Lot: 3897052
Very High Quality Certified 3.58 Carat Cushion Modified Brilliant Cut Lab Diamond. E/VS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896876
You don't want to miss this elegant 15 piece set of Mozambique garnets! They exhibit lavish red hues with a touch of amber in their undertone that really makes their color sing. This is accented by glittering pops of flashing and eye clean to VS clarity wrapped in high polished superior lusters. These gems have fantastic size measuring 7mm x 5mm with an average weight of .97 carats each, that's almost a full carat per each accent stone! That's large enough for single setting, incredible pairs of earrings, custom cocktail rings, or just adding a touch of rich decadence to your current settings. They were sourced from Mozambique, and have received no treatments. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3895238
Bright, sparkling natural hessonite garnet. This faceted oval measures 6z8.5mm and weighs 2.30 cts.  Lots of color! Treatment: none
Current Bid:
Lot: 3897059
Unbelievable Certified 3.09 Carat Emerald Cut Lab Diamond. F/VS1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897050
Very High Quality Certified 2.01 Carat Rectangular Modified Brilliant Cut Lab Diamond. F/VS1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897804
Experience unmatched brilliance with this exquisite 4.39 carat lab-grown diamond. Graded D color for its exceptional whiteness and VVS2 clarity for near-flawless purity, this loose stone is expertly cut to maximize fire and sparkle. Ethically created and visually stunning, it's the perfect centerpiece for a custom engagement ring or fine jewelry investment. IGI Certified.
Current Bid:
Lot: 3896900
This glittering tourmaline exhibits crisp SI clarity with vibrant color and an oval cut designed to sparkle! And that's what it does, it sparkles. Low light, bright light, sunlight, even shaded, this brilliant gemstone glitters and pops with non-stop flashing. It has a distinctive color palette, glowing in platinum green with a touch of well blended yellow in its undertone that reveals itself as the gem sparkles. This piece measures 8.8mm x 7.3mm x 4.6mm with a Mohs hardness rating of 7-7.5 out of 10, making this the perfect center stone for any setting. Sourced from Mozambique. Untreated!! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897803
High quality Fancy yellow Diamond - 1.56 CT lab grown Fancy yellow diamond. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, this stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896893
Measuring 4x3mm each, this 16 piece set is well matched in size, with each exhibiting brilliant flashing through VS to eye clarity. The color palette of these tanzanite moves through silvery blues and violets under superior lusters, and they are perfect for setting. This is an unheated collection sourced from Tanzania. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897065
Very High Quality Certified 4.1 Carat Princess Cut Lab Diamond. G/VVS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897859
Magnificent High quality Lab Diamond Cushion Brilliant Cut, 1.3 CT, VS1/F. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897053
Very High Quality Certified 5.07 Carat Cushion Modified Brilliant Cut Lab Diamond. G/VS1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896867
Cut from pure Madagascar sapphire, this piece exhibits a classic sapphire blue hue with a rich tone and preferred medium saturation through premium VS clarity. The luster of this sapphire shines off of tight facets, creating a sparkling effect across its surface. It has a classic oval cut, and measures 6mm x 4.9mm x 2.3mm. And with a Mohs hardness rating of 9 out of 10, its perfect for setting and daily wear. UNTREATED! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3895254
Berry bright and brilliant lot of natural rhodolite garnet. This lot of 5 faceted oval beauties has a total weight of 7.65 cts. Treatment: none.
Current Bid:
Lot: 3896881
You don’t want to miss this sapphire! The color of this piece has a silky black resting color that is so dark it glistens. It has a classic oval cut with wide faceting, and a glistening luster that shimmers off of each of those facets, and its body is beautifully opaque, so the color you see now is the color it will always be. Measuring 10.5mm x 9.5mm x 6mm, this sapphire has fantastic size, and a Mohs hardness rating of 9 out of 10, making it a great piece for setting. Sourced from Thailand. UNTREATED!!! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897063
Magnificent Certified 4.39 Carat Round Brilliant Cut Lab Diamond. G/VS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896892
Ametrines are interesting gemstones. They are a mix of amethyst and citrine which happens when the crystal is exposed to extreme heat during formation, turning the violet amethyst a golden hue. The ametrine itself is found in bands of crystals around the edges of this unique geological heating between the citrine and amethyst. This gem exhibits a ravishing mix of color that dances and sparkles through pristine VS clarity with preferred medium saturation. The sharp multi-color flashing of this ametrine glitters in violets and golds, accented by its superior luster. Measuring 13.2mm x 11.3mm x 6.5mm it is perfect for setting, and with a Mohs hardness rating of 7 out of 10, it is as durable as it is beautiful. Sourced from Bolivia. Untreated! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897031
Magnificent High quality Lab Diamond Cushion Brilliant Cut, 2.09 CT, VS1/F. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897867
Magnificent Certified 2.1 Carat Rectangular Modified Brilliant Cut Lab Diamond. F/VVS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3895244
A fan of asymmetry?  The trillion cut may be for you. This faceted trillion measures 6.75x6.8x7.1mm and weighs 1.13 cts. Natural green sapphire - heat treatment only.  No fillers, no diffusion treatment, not irradiated.
Current Bid:
Lot: 3896870
What a fantastic set of pure Zambian emeralds! It's like a rainbow, if rainbows were all green. You've got light greens, dark greens, rich greens, and vivid greens all held under glistening lusters that sparkle off of their facets. And measuring from 1.7mm to 2.6mm each, you have plenty of gems for all of your round shaped emerald needs. Oiled only! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3896860
Get ready to turbo charge your collection with this 19 piece set of all natural Rhodolite garnets! They each exhibit well matched top violet hues with violet purple flashing. And if that's not enough, they show spectacular lusters that glisten over every facet, and crisp SI clarity. But wait, there's more! They have fantastic size measuring from 6mm to 8.3x6mm with an average weight of 1.26 carats each with multiple oval cuts and a round and emerald cut thrown in for good measure. Untreated! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897871
Magnificent High quality Lab Diamond Oval Brilliant Cut, 1.75 CT, VS2/F. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896889
Lets add some glittering color to your gem and jewelry collection. This 35 piece collection of sapphires is heated only, no dyes, no fillers, just natural sapphire. They have bright green hues with touches of blue mixed into their swirling saturation, and pristine VS clarity so you won't miss a single sparkle. They measure 2.5mm to 3.4mm each and have a Mohs hardness rating of 9 out of 10, making them perfect for setting. And with an average weight of .11 carats each, these accent sapphire are the perfect size to liven up an old setting, or add some serious sparkle to a new one. They were sourced from Australia and are simply beautiful. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897863
Magnificent Certified 2 Carat Marquise Brilliant Cut Lab Diamond. F/VVS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896877
This is a set for both collectors and jewelers. Presented here is a set of pristine VS-VVS Burmese peridot exhibiting vivid spring green hues that are filled with glittering flashing. They are beautifully matched in size, measuring 3.5x3.5mm each with a 6x5mm center stone, and professionally polished giving them superior lusters. Untreated! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897066
Very Fine Certified 4.02 Carat Round Brilliant Cut Lab Diamond. G/SI1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897870
Magnificent High quality Lab Diamond Oval Brilliant Cut, 1.09 CT, VS1/E. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897865
Very Fine Certified 2.03 Carat Rectangular Modified Brilliant Cut Lab Diamond. F/VS1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897805
Investment! 7.09 CT, Color F, VVS 2. Lab grown diamond, IGI certfied
Current Bid:
Lot: 3896880
This set features rich color saturation with velvety royal blue hues and amazing liquid lusters giving them the appearance of being wet! They are beautifully matched in size measuring 5x4mm with an average weight of .46 carats each with eye clean to VS clarity. This high grade set was sourced from Ceylon, Sri Lanka, and is perfect for setting. Treat yourself like royalty with these royal blue sapphires, you deserve it. Heated only! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3895249
Colorful natural sapphire - lot of 5 These faceted marquise display fine, dense color.  Yummy! Treatment: heat only.
Current Bid:
Lot: 3896879
The amazing rich color of this tanzanite is amazing. This piece shows a deep blue violet hue that shifts color dominance in different lighting while maintaining shimmering silver full bodied flashing. All through pristine VS clarity. It has a strong tone with preferred medium saturation, and you can catch touches of pink in warmer lighting. And if that wasn't enough, it has the trademark tanzanite superior luster giving it a glistening sheen, and was cut to set measuring 8mm x 8mm x 5mm. Sourced from Tanzania. Gentle heat only! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3896895
Have we gone crazy? This is a set of really bright Swiss blue topaz center stones, and they are all in one set! And they all have eye clean to VS clarity! Presented here is seven individual topaz measuring 8x6mm each with an average weight of 1.48 carats per stone. If you put them in standard settings, that's almost 3 carats per each pair of earrings. And you still have a center stone to spare. You could set them individually, or use them for impressive accent gems for your favorite large caliber gems. Or you could go crazy with them yourself and make one heck of a cocktail ring. These natural topaz are up for the challenge. And with a Mohs hardness rating of 8 out of 10, they are ready for daily wear no matter where you decide to put them. Sourced from Brazil. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897860
Magnificent High quality Lab Diamond Cushion Brilliant Cut, 2.04 CT, VS2/F. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897051
Unbelievable Certified 2.05 Carat Cushion Modified Brilliant Cut Lab Diamond. F/VS1. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896873
This elegant garnet exhibits a superb reddish black hue with full saturation, and a strong violet red undertone that reveals itself when held to the light. Its rich resting color shows hints of maroon in its center while the concentrated color of its sides have a silky black appearance. It measures an impressive 10.3mm x 8.6mm x 5.5mm, and features a glistening superior luster. Sourced from Mozambique. Untreated!!! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3896872
With their vibrant color, outstanding VS to SI clarity, and superb faceting, these 30 sapphires are simply stunning. They exhibit matched pure pink hues accented with glittering flashing, and measure 2.3mm to 2.5mm each. These gems have tightly faceted radiant princess cuts and superior lusters and sparkling flashing. Sourced from Madagascar. Heated only! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3895247
Fancy color natural diamond – light canary. This natural diamond is a faceted marquise cut, measuring 3.4x6.4mm  It weighs 30 points.  Clarity grade: SI Treatment: none. This diamond has been mined and processed in compliance with United Nations resolutions prohibiting trade in conflict stones  Further, the diamonds are not irradiated and contain no filler.
Current Bid:
Lot: 3896884
Don't miss this heavy set of matched topaz! They have amazing size measuring a whopping 12x10mm and weighing approximately 4.55 carats each. That's large enough for impressive single settings, or a substantial pair of earrings! But that's only the beginning! You've got to have something to fill that large size, and these topaz accomplish that with vivid Swiss blue hues and an abundance of glittering flashing. Now, though, we should talk about what these gemstones don't have, which is anything to obstruct your view of their brilliant display thanks to their outstanding VS clarity! Whether you consider it a pair of gems, or a two for one sale, you should consider adding them to your gem and jewelry collection! Sourced from Brazil. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3897033
Magnificent High quality Lab Diamond Oval Brilliant Cut, 1.02 CT, VVS1/E. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896861
This fantastic 35 piece collection of sapphires is heated only, no dyes, no fillers, just natural sapphire. They have deep denim blue hues, all wrapped in excellent lusters with eye clean to VS clarity. They are well matched in size, measuring approximately 2.3mm each (+/-.1mm) and have a Mohs hardness rating of 9 out of 10, making them perfect for setting. They were sourced from Madagascar, and are stunning examples of pure sapphire. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3896891
This fantastic all natural sapphire measures 7mm x 5.5mm x 3.5mm, and has a beautiful visual presence. You can see the color striations formed while it was developing its crystal composition over millions of years, trapped forever through crisp SI1 clarity. The bi-color hue of this piece is as eye catching as its size with its rich sapphire and cobalt blues set under a premium polished, and preferred medium saturation. This gem is untreated, and has a Mohs hardness rating of 9 out of 10. Sourced from Bangkaja, Thailand. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3895245
Sweet pinks and greens play so nicely together.  And none more than this lot of 8. Step-cut cushion gems, the total weight is 5.21 cts.  Treatment: none
Current Bid:
Lot: 3897807
Magnificent! 4.27 CT, Color E, VS 1. Lab grown diamond, IGI certfied
Current Bid:
Lot: 3897057
Very Fine Certified 3.1 Carat Pear Brilliant Cut Lab Diamond. F/VVS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3897056
Magnificent Certified 3.06 Carat Pear Brilliant Cut Lab Diamond. F/VVS2. Elevate your jewelry design with this stunning loose lab-grown diamond. Expertly crafted using cutting-edge technology, this ethically sourced gemstone showcases a vibrant hue that rivals nature’s finest. With exceptional clarity, each stone is IGI certified for quality and authenticity.
Current Bid:
Lot: 3896899
Wow! If you are looking for a pure untreated garnet to add a bit of WOW to your gem and jewelry collection, then allow us to present this amazing example. It is not just double checkerboard cut giving you the same look an the front as the back, but it is also pendant cut, giving you a larger surface area with a lower profile. This makes it perfect for pendant setting, as it will lay flat against your neckline, and all other jewelry settings that are required to be snag free. You could very well be able to put your hand in your pocket again when wearing jewelry! But this gem is not just another pretty cut, there is substance behind its lustrous facade. It starts with its gorgeous cherry red body color and pinkish violet undertone. Then you add pops of rich fire red flashing dancing between every sparkling facet covered by its superior luster. And don't forget about its VS clarity! Not only that, but you've still got the larger surface area, so its 6.12 carat weight comes out to a whopping 11mm x 11mm x 5.5mm. That is a big old gemstone! And on top of all of that, its untreated. I think we just might have found your new gemstone. Sourced from Mozambique. Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid:
Lot: 3895248
Fine natural sapphire - it's a classic for a reason: it's lovely! This faceted oval gem measures 5.5x6.8mm and weighs 1.14 cts.  Treatment: heat only.  No fillers, no diffusion treatment, not irradiated.
Current Bid:
Lot: 3896883
This 25 piece high fire parcel is filled with brilliant flashing. The vivid apple green hues are beautifully matched and have exceptional lusters that add to their display. These round cut natural peridot measure 3.5mm with an average weight of .18 carats making them perfect for setting, and each exhibits VS to eye clarity. Sourced from Pakistan. Untreated! Gems come with a complimentary gem jar for display and protection, size permitting. All treatments are disclosed*, and all weights and sizes are approximate. Listed gemstones are greatly magnified, and minor details that present themselves in the photo may not be visible with the naked eye. There may be slight color differences due to individual monitor settings and capabilities. *Except for topaz. As irradiation is the standard treatment for this gem type, they should be assumed to be as such, unless stated otherwise in the description.
Current Bid: