6 days LeftTiffany & Co. Platinum Princess Cut Diamond Solitaire Engagement RingEst. $3,965-$5,154$100BidhausNew York, NY
Live NowStunning Platinum Eternity Band 7.50cts Pear Cut DiamondsEst. $29,315-$38,109$100(1 bid)Mynt AuctionsNew York, NY
Live NowPlatinum 4.25 Ct Diamond Necklace 52 European-Cut H-I VS1-SI3Est. $4,719-$6,134$100Mynt AuctionsNew York, NY
3 days LeftPlatinum Art Deco Cocktail Ring with Amethyst and Old Mine Cut DiamondsEst. $4,342-$5,644$100BidhausNew York, NY
1 day LeftDIAMOND MARQUISE-CUT MILGRAIN RING 900 PLATINUMEst. $4,050-$5,940$25NY Elizabeth Beverly Hills, CA
2 days LeftPlatinum Brooch with Round Emerald and Baguette Cut Diamonds 2.50ctsEst. $4,862-$6,320$100Mynt AuctionsNew York, NY
6 days LeftGIA Certified 6.37ctw Oval Ruby Platinum Ring with Rose Cut DiamondsEst. $19,136-$24,876$100Mynt AuctionsNew York, NY
3 days LeftAntique Platinum 18K Diamond Earrings 7.70 Ct European-CutEst. $18,447-$23,981$100Mynt AuctionsNew York, NY
Jul 05, 2026VINTAGE PLATINUM ENGAGEMENT RING 5.04CT. NATURAL PINK SAPPHIRE CUSHION CUT GIAEst. $67,150-$75,050$55,000Modern JewelryValley Village, CA
Live NowAntique Platinum 2.70ctw Old Cut Milgrain Bezel Diamond NecklaceEst. $8,671-$11,272$100Mynt AuctionsNew York, NY
1 day LeftDIAMOND PRINCESS-CUT NECKLACE 950 850 PLATINUMEst. $975-$1,430$25NY Elizabeth Beverly Hills, CA
5 hrs LeftGIA 1.02ct Old Mine Cut Diamond Platinum Pendant 18 in Handmade ChainEst. $3,588-$4,664$100BidhausNew York, NY
1 day LeftDIAMOND SQUARE CUT CLASSIC RING 900 PLATINUMEst. $1,050-$1,540$25NY Elizabeth Beverly Hills, CA
2 days LeftArt Deco Platinum Ring with Rose Cut Diamonds 1.20 Inch Long Size 8.25Est. $3,328-$4,326$100BidhausNew York, NY
3 days Left5.07 Ct Princess-Cut Diamond Ring in PlatinumEst. $21,710-$28,223$100Mynt AuctionsNew York, NY
2 days LeftPlatinum 5-Stone Carre Step Cut Diamond Band Ring 1.08ctw Size 5.5Est. $2,730-$3,549$1,550BidhausNew York, NY
3 days LeftRachel Koen Platinum 4.50 cttw Round Cut Diamond Eternity RingEst. $17,979-$23,372$100Mynt AuctionsNew York, NY
6 days LeftPlatinum 3.00ct French Cut Diamond Eternity Band Size 6.75Est. $6,708-$8,720$100BidhausNew York, NY
1 hr LeftEdwardian platinum ring with GIA certified Old European cut diamondEst. $16,614-$21,598$9,600(1 bid)BidhausNew York, NY
1 day Left25 European-cut Diamonds 9.00 Ct Platinum Necklace 24 InchesEst. $10,842-$14,094$100BidhausNew York, NY
4 days LeftVictorian 18K Gold Platinum Brooch with Natural Pearl and Rose-cut DiamondsEst. $3,718-$4,833$100BidhausNew York, NY