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38.75ctw Diamond, 20.54ctw GIA Sapphire, 18K Necklace: 38.75ctw VS1-SI1/G-H Diamond, 20.54ctw GIA Certified Ceylon and Madagascar Sapphire and 18K White Gold Cocktail Necklace W/(3) GIA Reports - THIS ITEM WILL COME WITH A $450,000 INSURANCE VALUATION REP

2026

38.75ctw Diamond, 20.54ctw GIA Sapphire, 18K Necklace

GWS Auctions Inc.

Art Deco Platinum GIA Certified Sapphire Diamond Bracelet 110 Ct: Art Deco Platinum GIA Certified Sapphire Diamond Bracelet 110 Ct This exquisite Art Deco bracelet is crafted in platinum and features GIA Certified sapphires and diamonds. It weighs 54.5 grams and is

3 days Left

Art Deco Platinum GIA Certified Sapphire Diamond Bracelet 110 Ct

Est. US$31,226-US$40,593

13.20 Carat GIA Ceylon Sapphire Diamond Halo Ring 18k White Gold: 13.20 Carat GIA Ceylon Sapphire Diamond Halo Ring 18k White Gold This exquisite contemporary ring showcases a stunning 13.20 carat GIA certified Ceylon sapphire, originating from Sri Lanka, beautifull

5 days Left

13.20 Carat GIA Ceylon Sapphire Diamond Halo Ring 18k White Gold

Est. US$66,989-US$87,085

Antique Edwardian 18k Gold Platinum GIA 3.40ct Sapphire Diamond Ring: Antique Edwardian 18k Gold Platinum GIA 3.40ct Sapphire Diamond Ring This exquisite Antique Edwardian ring showcases a stunning blend of 18k yellow gold and platinum, featuring a remarkable 3.40ctw of

9 hrs Left

Antique Edwardian 18k Gold Platinum GIA 3.40ct Sapphire Diamond Ring

Est. US$14,079-US$18,302

Platinum natural sapphire diamond ring GIA: Platinum natural sapphire diamond ring, comes with GIA certificate. Total 3.82 carats sapphire, and total 1.28 carats diamonds. US ring size 6.75.

5 days Left

Platinum natural sapphire diamond ring GIA

West Coast Auction Gallery

Est. US$5,000-US$6,000

GIA Certified No Heat Padparadscha Sapphire and Diamond Platinum Cocktail Ring: GIA Certified No Heat Padparadscha Sapphire and Diamond Platinum Cocktail Ring This vintage cocktail ring features a certified 3.83 carat natural Padparadscha sapphire from Sri Lanka, displaying a pin

2 days Left

GIA Certified No Heat Padparadscha Sapphire and Diamond Platinum Cocktail Ring

Est. US$19,110-US$24,843

6.23 Ct Marquise Diamond and Yellow Sapphire 18K Yellow Gold Ring GIA Certified: 6.23 Ct Marquise Diamond and Yellow Sapphire 18K Yellow Gold Ring GIA Certified This ring features a 6.23 carat GIA certified marquise diamond with S-T color and I1 clarity, set in 18K yellow gold. Th

5 days Left

6.23 Ct Marquise Diamond and Yellow Sapphire 18K Yellow Gold Ring GIA Certified

Est. US$50,245-US$65,318

Platinum blue sapphire diamond ring GIA size 6.75: Platinum blue sapphire diamond ring, comes with GIA certificate. Total 3.43 carats sapphire, and 0.46 carats dimaond. Ring size 6.75.

5 days Left

Platinum blue sapphire diamond ring GIA size 6.75

West Coast Auction Gallery

Est. US$3,200-US$4,200

14k & GIA Natural Sapphire Bracelet - 39.39 ctw: S&S 14k yellow gold bracelet set with 15 cushion cut GIA certified natural Thailand or Sri Lankan (Ceylon) sapphires, showing no indications of heating. Colors range from blue, yellow, pink, and bluis

Apr 14, 2026

14k & GIA Natural Sapphire Bracelet - 39.39 ctw

Revere Auctions

Est. US$10,000-US$15,000

Vintage 18k Gold Sapphire Diamond Scroll Ring GIA Certified 6.31ctw: Vintage 18k Gold Sapphire Diamond Scroll Ring GIA Certified 6.31ctw This exquisite vintage cocktail ring showcases a stunning 4.51-carat natural blue sapphire, beautifully set in an 18k yellow gold ba

9 hrs Left

Vintage 18k Gold Sapphire Diamond Scroll Ring GIA Certified 6.31ctw

Est. US$14,378-US$18,691

GIA Certified Platinum 8.00 Ct Yellow Sapphire Diamond Ring: GIA Certified Platinum 8.00 Ct Yellow Sapphire Diamond Ring This stunning ring features a GIA Certified yellow sapphire, weighing approximately 8.00 Ct, set in luxurious platinum. The sapphire measure

1 day Left

GIA Certified Platinum 8.00 Ct Yellow Sapphire Diamond Ring

Est. US$12,064-US$15,683

Antique Art Deco Platinum GIA Certified 0.97ct Sapphire Diamond Ring: Antique Art Deco Platinum GIA Certified 0.97ct Sapphire Diamond Ring This exquisite Antique Art Deco ring features a stunning natural sapphire from Burma, weighing 0.45 carats, with a round step cut a

1 day Left

Antique Art Deco Platinum GIA Certified 0.97ct Sapphire Diamond Ring

Est. US$3,770-US$4,901

Art Deco 24.95ct Diamond Sapphire Bracelet 18k White Gold GIA Appraisal: Art Deco 24.95ct Diamond Sapphire Bracelet 18k White Gold GIA Appraisal This exquisite Art Deco style bracelet showcases a stunning combination of 24.95 carats of diamonds and sapphires, all set in lu

3 days Left

Art Deco 24.95ct Diamond Sapphire Bracelet 18k White Gold GIA Appraisal

Est. US$51,311-US$66,704

Platinum natural sapphire diamond ring GIA: Platinum natural oval cut sapphire diamond ring. Comes with GIA certificate. Total 1.09 carat sapphire, and 0.50 carats diamonds.

5 days Left

Platinum natural sapphire diamond ring GIA

West Coast Auction Gallery

Est. US$1,500-US$2,200

18k White Gold GIA 5.36ct Cushion Blue Sapphire Diamond Ring: 18k White Gold GIA 5.36ct Cushion Blue Sapphire Diamond Ring This stunning 18k white gold ring features a captivating 5.36 carat cushion-cut periwinkle blue sapphire, accompanied by two dazzling round

2 days Left

18k White Gold GIA 5.36ct Cushion Blue Sapphire Diamond Ring

Est. US$12,480-US$16,224

Platinum Halo Ring with GIA Ceylon No Heat Sapphire and Diamonds 10.56ctw: Platinum Halo Ring with GIA Ceylon No Heat Sapphire and Diamonds 10.56ctw This stunning cocktail ring showcases a natural Ceylon sapphire with no heat treatment, certified by GIA. The centerpiece is a

5 days Left

Platinum Halo Ring with GIA Ceylon No Heat Sapphire and Diamonds 10.56ctw

Est. US$19,136-US$24,876

Platinum 3.32ctw GIA Certified Ceylon Pink Sapphire Diamond Cocktail Ring: Platinum 3.32ctw GIA Certified Ceylon Pink Sapphire Diamond Cocktail Ring This exquisite ballerina ring features a stunning natural Ceylon sapphire, weighing 2.78 carats, showcasing a vivid purple pin

2 days Left

Platinum 3.32ctw GIA Certified Ceylon Pink Sapphire Diamond Cocktail Ring

Est. US$5,811-US$7,554

Platinum 6.83ctw GIA No Heat Burma Star Sapphire Diamond Ring: Platinum 6.83ctw GIA No Heat Burma Star Sapphire Diamond Ring This exquisite cocktail ring features a stunning natural star sapphire, renowned for its unique color-changing properties from blue to vio

3 days Left

Platinum 6.83ctw GIA No Heat Burma Star Sapphire Diamond Ring

Est. US$18,148-US$23,592

GIA Certified 3.53ct Pink Purple Sapphire Diamond Ring in Platinum Gold: GIA Certified 3.53ct Pink Purple Sapphire Diamond Ring in Platinum Gold This stunning ring features a natural, elongated pink-purple sapphire, expertly cut in a long rectangular brilliant style with r

3 days Left

GIA Certified 3.53ct Pink Purple Sapphire Diamond Ring in Platinum Gold

Est. US$4,576-US$5,948

Edwardian T.B. Starr 14k Gold Platinum GIA 4.95ct Cabochon Sapphire Diamond Ring: Edwardian T.B. Starr 14k Gold Platinum GIA 4.95ct Cabochon Sapphire Diamond Ring This exquisite Edwardian-era ring features a stunning 4.65ct natural genuine star sapphire, showcased in an oval caboch

4 days Left

Edwardian T.B. Starr 14k Gold Platinum GIA 4.95ct Cabochon Sapphire Diamond Ring

Est. US$9,620-US$12,506

18k Gold Platinum 2.34ct GIA No Heat Purple Sapphire Diamond Ring: 18k Gold Platinum 2.34ct GIA No Heat Purple Sapphire Diamond Ring This exquisite cocktail ring showcases a stunning natural purple sapphire, elegantly framed by old mine cut diamonds. The centerpiece

3 days Left

18k Gold Platinum 2.34ct GIA No Heat Purple Sapphire Diamond Ring

Est. US$9,607-US$12,489

Platinum GIA 3.03ct No Heat Pinkish Purple Sapphire Diamond Ring: Platinum GIA 3.03ct No Heat Pinkish Purple Sapphire Diamond Ring This exquisite ring features a stunning natural sapphire, showcasing a vivid pinkish-purple hue. The octagonal step cut sapphire, weigh

4 days Left

Platinum GIA 3.03ct No Heat Pinkish Purple Sapphire Diamond Ring

Est. US$4,862-US$6,320

14k Yellow Gold GIA 3.03ctw No Heat Pink Sapphire Diamond Cocktail Ring: 14k Yellow Gold GIA 3.03ctw No Heat Pink Sapphire Diamond Cocktail Ring This exquisite cocktail ring features a stunning 3.03 carat total weight comprised of a natural, no-heat pear-shaped pink sapphi

1 day Left

14k Yellow Gold GIA 3.03ctw No Heat Pink Sapphire Diamond Cocktail Ring

Est. US$6,773-US$8,804

18K Yellow Gold Pink Sapphire Ring, GIA: 18K Yellow Gold Pink Sapphire Ring, accompanied by GIA Report #2235217896, dated 25 March 2024, stating that gemstone is Natural Corundum-Sapphire, with Burma origin and evidence of heat treatment, fe

May 14, 2026

18K Yellow Gold Pink Sapphire Ring, GIA

Auctions at Showplace

Est. US$4,000-US$6,000

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