Certified Jewelry | Fine Jewelry | US Auction Brokers - U.S. Auction Brokers

Certified Jewelry

Luxury Jewelry

Lot: 3898691
This platinum ring, signed by Aaron Gottlieb, features a GIA-certified natural ruby weighing 4.00 carats at its center. The ruby is beautifully accented by 1.81 carats of round diamonds, adding a brilliant touch and weighs 7.6 grams.
Current Bid:
Lot: 3898689
This stunning platinum sapphire ring features a natural yellow-orange sapphire at its center, weighing 2.11 carats. The vibrant sapphire is beautifully accented by 0.99 carats of round brilliant-cut diamonds. With a total weight of 9.6 grams, this ring combines bold color with radiant sparkle for a truly remarkable piece.
Current Bid:
Lot: 3898754
MEN'S CERTIFIED BRAND NEW 14K YELLOW GOLD DIAMOND RING. IT HAS ALL NATURAL ROUND BRILLIANT CUT DIAMONDS WITH A TOTAL WEIGHT OF 5.50 CARATS. DIAMONDS ARE G-H COLOR AND SI CLARITY. DIAMONDS ARE 100% NATURAL (NOT LAB GROWN). RING IS VERY LARGE AND HEAVY. IT IS ONE INCH WIDE AT TOP. GOLD WEIGHT IS 17.6 GRAMS. STAMPED 14K. RING SIZE IS 10-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. RING IS BRAND NEW FROM JEWELRY STORE DISPLAY. DIAMONDS ARE FULL OF LUSTER. CERTIFIED BY C.G.L, CERTIFICATE #2742438331001853. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3898694
This elegant 18K white gold ring showcases a 2.60-carat GIA-certified sapphire, beautifully accented by 0.24 carats 22 genuine VS1-VS2 round diamonds. Weighing 6.4 grams, it is a timeless piece of sophistication and brilliance.
Current Bid:
Lot: 3898763
CERTIFIED 18K WHITE GOLD DIAMOND ENGAGEMENT RING. IT HAS ALL NATURAL DIAMONDS WITH A TOTAL WEIGHT OF 1.35 CARAT. CENTER DIAMOND IS A 0.85 CARAT PRINCESS CUT SET IN 4 PRONGS. IT IS G IN COLOR AND SI2 IN CLARITY. SIDE DIAMONDS ARE ALL ROUND BRILLIANT CUT WITH A WEIGHT OF 0.50 CARAT, THEY ARE H IN COLOR AND SI IN CLARITY. RING IS SIZE 6.5-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. GOLD WEIGHT IS 5.0 GRAMS. STAMPED 18K. RING IS IN MINT CONDITION. CERTIFIED BY C.G.L, CERTIFICATE #2717439037001074. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3898742
CERTIFIED BRAND NEW 14K YELLOW GOLD AND DIAMOND ENGAGEMENT RING. IT HAS ALL NATURAL ROUND BRILLIANT CUT DIAMONDS WITH A TOTAL WEIGHT OF 1.50 CARATS. DIAMONDS ARE F-G IN COLOR AND SI1-I1 IN CLARITY, RING IS SIZE 8 -CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. GOLD WEIGHT IS 7.7 GRAMS. STAMPED 14K.  TOP PART IS 9MM WIDE. DIAMONDS ARE NEAR COLORLESS AND FULL OF LUSTER. 100% GENUINE AND NATURAL. IT IS BRAND NEW FROM JEWELRY STORE DISPLAY-NEVER WORN . CERTIFIED BY C.G.L, CERTIFICATE #2773703405000962. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3898760
CERTIFIED BRAND NEW 14K WHITE GOLD DIAMOND RING. IT HAS ALL NATURAL ROUND BRILLIANT CUT AND BAGUETTE CUT DIAMONDS WITH A TOTAL WEIGHT OF 1.50 CARAT. DIAMONDS ARE E-G IN COLOR AND VS-SI IN CLARITY. RING IS SIZE 7-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. GOLD WEIGHT IS 4.4 GRAMS. RING IS 18.3MM LONG AT TOP. IT IS BRAND NEW FROM JEWELRY STORE DISPLAY. NEVER WORN. DIAMONDS ARE 100% NATURAL AND FULL OF LUSTER. CERTIFIED BY C.G.L, CERTIFICATE #2712985670001313. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3897638
Unbelievable Certified 3.06 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: 3898756
MEN'S CERTIFIED 14K WHITE GOLD DIAMOND BAND / RING. IT HAS ALL NATURAL ROUND BRILLIANT CUT DIAMONDS SET IN CHANNEL SETTING WITH A TOTAL WEIGHT OF 0.40 CARAT. DIAMONDS ARE E-F COLOR AND VS1-VS2 CLARITY. RING IS IN MINT CONDITION. GOLD WEIGHT IS 4.9 GRAMS. STAMPED 14K. RING IS SIZE 13-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. DIAMONDDS ARE 100% NATURAL (NOT LAB GROWN). CERTIFIED BY C.G.L, CERTIFICATE #2712654965001618. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3898803
Magnificent High quality Lab Diamond Cushion Modified Brilliant Cut, 1 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: 3898804
Magnificent High quality Lab Diamond Octagonal Modified Brilliant Cut, 1.52 CT, VS1/D. 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: 3898812
Magnificent High quality Lab Diamond Oval Brilliant Cut, 1.35 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: 3898806
Magnificent Certified 2.09 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: 3897647
Magnificent Certified 4.05 Carat Emerald 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: 3898807
Unbelievable Certified 3.02 Carat Marquise Brilliant Cut Lab Diamond. E/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: 3898759
CERTIFIED BRAND NEW 14K GOLD AND DIAMOND ENGAGEMENT RING. IT HAS ALL NATURAL ROUND BRILLIANT CUT DIAMONDS WITH A TOTAL WEIGHT OF 1.00 CARAT. CENTER DIAMOND IS 0.29 CARAT, G IN COLOR AND SI1 IN CLRITY. SIDE DIAMONDS TOTAL 0.71 CARAT, G IN COLOR AND SI IN CLARITY. RING IS SIZE 7-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. GOLD WEIGHT IS 4.1 GRAMS. STAMPED 14K. RING IS BRAND NEW FROM JEWELRY STORE DISPLAY-NEVER WORN. DIAMONDS ARE 100%NATURAL AND FULL OF LUSTER. CERTIFIED BY C.G.L, CERTIFICATE #2736562344001343. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3897634
Magnificent High quality Lab Diamond Cushion Brilliant Cut, 2.07 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: 3898811
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: 3898802
Magnificent High quality Lab Diamond Octagonal Modified Brilliant Cut, 1.09 CT, VS1/D. 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: 3897644
Very High Quality Certified 3.02 Carat Marquise Brilliant Cut Lab Diamond. E/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: 3897641
Remarkable 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: 3898801
Magnificent High quality Lab Diamond Cushion Brilliant Cut, 1.33 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: 3897632
Magnificent High quality Lab Diamond Cushion Brilliant Cut, 2.08 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: 3897643
Unbelievable 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: 3898800
Magnificent High quality Lab Diamond Cushion Brilliant Cut, 1.5 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: 3898758
CERTIFIED 18K WHITE GOLD CHAIN WITH AND 18K WHITE GOLD DIAMOND PENDANT. IT HAS ALL NATURAL ROUND BRILLIANT CUT DIAMONDS WITH A TOTAL WEIGHT OF 1.25 CARAT. DIAMONDS ARE E-F IN COLOR AND VS IN CLARITY. THIS IS A VERY HIGH QUALITY PENDANT. CHAIN IS 16 INCHES LONG. PENDANT IS 1.25 INCH X 1.00 INCH. ITS HOOK CAN FIT A CHAIN UP TO 5MM WIDE. CHAIN HAS A SPRING LOCK AND STAMPED 18K. PENDANT IS STAMPED 750 (18K). IT IS BRAND NEW FROM JEWELRY STORE DISPLAY-NEVER WORN. DIAMONDS ARE 100% NATURAL AND FULL OF LUSTER. CERTIFIED BY C.G.L, CERTIFICATE #2766664491001392. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3898755
CERTIFIED BRAND NEW 14K GOLD DIAMOND ENGAGEMENT RING. IT HAS ALL NATURAL AND PRINCESS CUT DIAMONDS WITH A TOTAL WEIGHT OF 0.75 CARAT. CENTER DIAMOND IS A 0.25 CARAT PRINCESS CUT SET IN A HALO SETTING. IT IS H COLOR AND SI1 CLARITY. SIDE DIAMONDS ARE ALL ROUND BRILIANT CUT TOTALING 0.50 CARAT. THEY ARE H COLOR AND VS-SI1 CLARITY. RING IS SIZE 7-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. GOLD WEIGHT IS 3.8 GRAMS. IT IS BRAND NEW FROM JEWELRY STORE DISPLAY. NEVER WORN. DIAMONDS ARE 100% NATURAL (NOT LAB GROWN). CERTIFIED BY C.G.L, CERTIFICATE #2796239779001763. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3897648
Very High Quality Certified 2.52 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: 3898808
Unbelievable Certified 2.02 Carat Rectangular 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: 3898762
CERTIFIED BRAND NEW 14 YELLOW GOLD AND DIAMOND RING. IT HAS ALL NATURAL ROUND BRILLIANT CUT DIAMONDS WITH A TOTAL WEIGHT OF 1.25 CARAT. CENTER DIAMOND IS 0.55 CARAT F IN COLOR AND I1 IN CLARITY. SIDE DIAMONDS ARE 0.70 CARAT F-H IN COLOR AND SI1-I1 IN CLARITY. RING IS SIZE 8-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. GOLD WEIGHT IS 6.7 GRAMS. TOP PART IS 7 MM WIDE. IT WOULD MAKE THE PERFECT ENGAGEMENT RING. BRAND NEW FROM JEWELRY STORE DISPLAY. NEVER WORN. CERTIFIED BY C.G.L, CERTIFICATE #2700704762000939. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3897645
Very Fine Certified 3.05 Carat Marquise Brilliant Cut Lab Diamond. E/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: 3897633
Magnificent High quality Lab Diamond Rectangular Modified Brilliant Cut, 1.53 CT, VS2/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: 3898809
Remarkable Certified 2.04 Carat Rectangular Modified Brilliant Cut Lab Diamond. E/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: 3897639
Remarkable Certified 2.07 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: 3898810
Very High Quality Certified 2.05 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: 3898757
CERTIFIED 14K YELLOW GOLD DIAMOND RING. IT HAS ALL NATURAL ROUND BRILLIANT CUT AND BAGUETTE CUT DIAMONDS WITH A TOTAL WEIGHT OF 0.70 CARAT, CENTER DIAMOND IS 0.45 CARAT ROUND BRILLIANT CUT SET IN 6 PRONGS. IT IS F COLOR AND VS2 CLARITY. SIDE DIAMONDS TOTAL 0.25 CARAT. THEY ARE G-H COLOR AND VS-SI CLARITY. RING IS 7.5MM WIDE. RING SIZE IS 5-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. GOLD WEIGHT IS 6.1 GRAMS. STAMPED 14K. IN VERY GOOD CONDITION. IT IS 2 RINGS WHICH WERE SOLDERD TOGETHER. DIAMONDS ARE 100% NATURAL (NOT LAB GROWN). CERTIFIED BY C.G.L, CERTIFICATE #2734493753001628. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3897642
Very Fine Certified 5.08 Carat Cushion Modified 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: 3898805
Remarkable Certified 4.07 Carat Cushion Modified Brilliant 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: 3898743
CERTIFIED BRAND NEW 18K WHITE GOL,D AND DIAMOND RING. IT HAS ALL NATURAL PRINCESS CUT DIAMONDS SET IN AN INVISIBLE SETTING WITH A TOTAL WEIGHT OF 0.75 CARAT. DIAMONDS ARE E-F IN COLOR AND VS-SI IN CLARITY. RING IS SIZE 7-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. GOLD WEIGHT IS 9.3 GRAMS. STAMPED 18K. IT IS 7.5 MM WIDE. BRAND NEW FROM JEWELRY STORE DISPLAY-NEVER WORN. CAN BE USED AS A WEDDING BAND OR ANNIVERSARY RING. DIAMONDS ARE 100% NATURAL AND FULL OF LUSTER. CERTIFIED BY C.G.L, CERTIFICATE #2799834626000926. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3897646
Very Fine Certified 2.05 Carat Rectangular Modified Brilliant Cut Lab Diamond. D/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: 3897679
A true statement of elegance pair of Ruby and diamond in Silver – EGL Certified. Set in lustrous silver and adorned with brilliant diamond accents, 8.11 ct of Ruby, Accompanied by a EGL certificate, this piece has been professionally appraised for retail replacement value. Please note: the appraisal reflects retail pricing and does not represent auction or resale value.
Current Bid:
Lot: 3898773
A true statement of elegance pair of Ruby and diamond in Silver – EGL Certified. Set in lustrous silver and adorned with brilliant diamond accents, 4.98 ct of Ruby, Accompanied by a EGL certificate, this piece has been professionally appraised for retail replacement value. Please note: the appraisal reflects retail pricing and does not represent auction or resale value.
Current Bid:
Lot: 3898761
CERTIFIED 14K WHITE GOLD AND DIAMOND BAND. IT HAS ALL NATURAL ROUND BRILLIANT CUT DIAMONDS WITH A TOTAL WEIGHT OF 1.00 CARAT. DIAMONDS ARE F-G IN COLOR AND VS-SI IN CLARITY. BAND IS SIZE 7-CAN EASILY GET RESIZED BY YOUR LOCAL JEWELER. GOLD WEIGHT IS 4.8 GRAMS. STAMPED 14K. BAND IS 5.7MM WIDE. IN MINT CONDITION. CAN BE USED AS A WEDDING BAND OR ANNIVERSARY RING. DIAMONDS ARE 100% NATURAL AND FULL OF LUSTER. CERTIFIED BY C.G.L, CERTIFICATE #2780738376001149. CAN BE VERIFIED AT CGL-LABS.COM
Current Bid:
Lot: 3897640
Very Fine Certified 5.06 Carat Cushion Modified Brilliant Cut Lab Diamond. H/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: