2 hrs LeftPlatinum Brooch with 23 Sapphire and Diamond Leaf DesignEst. $7,579-$9,852$100(1 bid)Mynt AuctionsNew York, NY
5 days LeftPlatinum Tennis Bracelet 7.48ct Round Brilliant Diamonds Shared Prong SettingEst. $14,378-$18,691$100BidhausNew York, NY
Live NowPlatinum Radiant Diamond Eternity Band Ring Size 5 17 StonesEst. $18,083-$23,507$100BidhausNew York, NY
Jul 14, 2026Platinum Blue Sapphire and Diamond Ring with AppraisalEst. $4,000-$5,500$2,500Williamson Auction GalleryHollywood, FL
Jul 08, 2026Oscar Friedman Platinum Tanzanite and Diamond RingEst. $2,500-$3,000$1,100(2 bids)Coral Gables AuctionCoral Gables, FL
5 days LeftVintage Platinum 3.6ctw GIA Oval Sapphire Diamond Band RingEst. $5,811-$7,554$3,500BidhausNew York, NY
3 days LeftArt Deco Platinum Sapphire Line Bracelet GIA Maurice TishmanEst. $4,862-$6,320$2,800BidhausNew York, NY
3 days LeftPlatinum Pendant with 1.11ct Diamond and Certificate by Tiffany & Co.Est. $12,090-$15,717$100BidhausNew York, NY
5 days Left18k Yellow Gold Platinum GIA Emerald Baguette Diamond Ring 4.1ctwEst. $18,174-$23,626$100BidhausNew York, NY
1 day LeftPlatinum and 18K Gold Art Deco Diamond Clip Brooch with 7 Carats Old Mine StonesEst. $7,579-$9,852$100BidhausNew York, NY
8 hrs LeftAntique Art Deco 4.37ct Diamond Pendant Necklace in Platinum 20in ChainEst. $9,620-$12,506$100BidhausNew York, NY
6 days LeftVintage Platinum Cocktail Ring with Cabochon Turquoise and Diamond ClusterEst. $18,798-$24,437$100BidhausNew York, NY
2 days LeftVintage 14k Gold Platinum GIA 19.47ct Aquamarine Diamond Cocktail RingEst. $8,580-$11,154$100BidhausNew York, NY
2 days LeftGIA Certified 18k Gold Platinum Ruby Diamond Cocktail RingEst. $19,136-$24,876$100Mynt AuctionsNew York, NY
2 days LeftArt Deco Platinum Marquise Ring 1.35ct Diamond 60pts Emerald Size 5Est. $17,160-$22,308$100BidhausNew York, NY
3 days LeftGIA Certified 3.52ct No Heat Ruby Platinum Halo RingEst. $12,337-$16,038$100Mynt AuctionsNew York, NY
4 days LeftPlatinum Ruby Diamond Eternity Wedding Band Ring Size 7Est. $5,811-$7,554$3,350BidhausNew York, NY
Jul 14, 2026GIA Certified Emerald and Diamond Halo Ring in Gold Toned PlatinumEst. $5,000-$10,000$2,000Williamson Auction GalleryHollywood, FL
7 hrs LeftPlatinum and Diamond Bypass Pendant with CGL Grading ReportEst. $10-$100,000$60(3 bids)Gallery 63Atlanta, GA
1 day LeftPlatinum 7 Carat Old Mine Diamond Brooch with 4 DiamondsEst. $7,579-$9,852$100BidhausNew York, NY
4 days LeftVintage 6.5ctw Diamond Leaf Brooch in Gold and PlatinumEst. $10,478-$13,621$100Mynt AuctionsNew York, NY
Jul 14, 2026Platinum Sapphire and Diamond Ring with GIA ReportEst. $2,500-$3,500$1,500Williamson Auction GalleryHollywood, FL
8 hrs LeftGIA Certified 18k Gold Platinum Ruby Diamond Cocktail RingEst. $19,136-$24,876$100BidhausNew York, NY