3 days LeftVintage 1940s Platinum Diamond Emerald Flower Cocktail Ring 1.98ctwEst. $4,862-$6,320$100Mynt AuctionsNew York, NY
2 days LeftDavid Webb Platinum 18K Yellow Gold Garnet Turquoise Diamond NecklaceEst. $33,735-$43,855$100Mynt AuctionsNew York, NY
20261950's Platinum Brooch with 35 Carats Round and Baguette DiamondsSee Sold PriceBidhausNew York, NY
5 days LeftGIA Certified 51.68ct Sapphire Ruby Diamond Double Leaf Brooch in Platinum 18k GoldEst. $23,699-$30,808$100Mynt AuctionsNew York, NY
3 days LeftTiffany & Co Novo 1.66 CTW Diamond Platinum Ring Size 4.25Est. $24,570-$31,941$100Mynt AuctionsNew York, NY
1 day LeftDavid Webb Platinum 18K Yellow Gold Black Enamel Diamond Hoop EarringsEst. $14,716-$19,130$100Mynt AuctionsNew York, NY
3 days LeftAntique Edwardian Tiffany & Co. 5ctw Diamond Comb in Platinum and GoldEst. $19,123-$24,859$100Mynt AuctionsNew York, NY
5 days LeftFrench Retro Diamond Emerald Clip 18K Gold Platinum 3.50 ctEst. $19,669-$25,569$100Mynt AuctionsNew York, NY
6 days LeftPlatinum Hamilton Bracelet Watch with 4.15ctw Round Diamonds Vintage 1940sEst. $7,722-$10,038$100Mynt AuctionsNew York, NY
5 days LeftDavid Webb 1980s Coral Diamond Earrings Platinum 18K GoldEst. $36,725-$47,742$100Mynt AuctionsNew York, NY
4 days LeftVintage Platinum 1.0ctw VS Diamond 5 Stone Channel Set Band RingEst. $2,678-$3,481$100Mynt AuctionsNew York, NY
6 days LeftTiffany Elsa Peretti platinum curved diamond band ring size 6Est. $2,652-$3,447$100Mynt AuctionsNew York, NY
Jul 22, 2026Important & Rare Ca. 1925 Art Deco Cartier, Diamond, Amethyst, Onyx Platinum Floral BroochEst. $100-$1,000$325(4 bids)Kotler'sIsland Park, NY
4 days LeftPlatinum GIA Certified 1.30ctw Black Opal Diamond Cocktail RingEst. $2,249-$2,923$100Mynt AuctionsNew York, NY
Jul 22, 2026Cartier Style Platinum, Carved Colored Stone Diamond 'Tutti Frutti' PendantEst. $100-$1,000$150(2 bids)Kotler'sIsland Park, NY
Jul 18, 2026Platinum, Ceylon Sapphire and Diamond RingEst. $15,000-$25,000$3,000North American Auction Co.Bozeman, MT
4 days LeftAntique Art Deco Platinum Diamond Sapphire Filigree Ring 0.27ct DiamondEst. $2,015-$2,619$100Mynt AuctionsNew York, NY
2 mins LeftGIA Certified 7.73ct Vivid Orange Sapphire Emerald Diamond RingEst. $12,480-$16,224$100(1 bid)Mynt AuctionsNew York, NY
Jul 29, 2026Platinum Free form Coral Pendant on 18 14K Gold Chain"Est. $3,252-$3,725$50Riverside GalleriesArcadia, CA
6 days LeftPlatinum Emerald and Diamond Riviera NecklaceEst. $14,000-$24,000$10,000Williamson Auction GalleryHollywood, FL
1 day LeftPlatinum & Gold 1.70cts Diamond RingEst. $42,084-$58,450$50Prestige Auction GalleriesWoodland Hills, CA
3 hrs LeftPlatinum & Gold 1.70cts Diamond RingEst. $42,084-$58,450$50Prestige Auction GalleriesWoodland Hills, CA
2 days LeftPlatinum & Gold 1.70cts Diamond RingEst. $42,084-$58,450$50Prestige Auction GalleriesWoodland Hills, CA
Jul 18, 2026Platinum 1.33ct Ruby and 0.82ct Diamond RingEst. $3,500-$5,500$1,900North American Auction Co.Bozeman, MT