May 31, 20261.02 ctw Baguette Diamond Platinum Wide Band RingEst. $3,900-$6,300$25Serenity GallerieSaint Petersburg, FL
4 days LeftAMETHYST & DIAMOND PLATINUM COCKTAIL RING WITH 18.9-13.6MM OVAL AMETHYST CENTEREst. $6,375-$7,125$5,200Modern JewelryValley Village, CA
2 days LeftAntique Platinum Pave Diamond Sapphire Dome Ring Platinum Size 7 French RG4973Est. $5,000-$7,000$25Eco Estate JewelryLakeway, TX
Jun 02, 2026Platinum Vintage Filigree Engagement Ring 0.78ct. Natural Old Mine Cut DiamondEst. $4,505-$5,035$3,700Modern JewelryValley Village, CA
Jun 02, 2026Platinum Vintage Engagement Ring 1.52ct. Natural Old Euro Cut Round DiamondEst. $13,515-$15,105$11,000Modern JewelryValley Village, CA
Jun 02, 2026Platinum 18k Vintage Filigree Engagement Ring 2.88ct. Natural Marquise DiamondEst. $16,150-$18,050$13,250Modern JewelryValley Village, CA
2 days LeftAntique Van Cleef & Arpels Platinum 0.60ct Diamond Engagement Ring with BoxEst. $9,565-$10,761$3,300Diamond DepotNew York, NY
Jun 02, 2026Vintage Platinum Engagement Ring 5.50ct.Natural Sky Blue Marquise AquamarineEst. $6,375-$7,125$5,200Modern JewelryValley Village, CA
Jun 02, 2026Vintage Platinum Engagement Ring 6.37ct. Natural Colombia Emerald Old Euro DiaEst. $48,450-$54,150$39,750Modern JewelryValley Village, CA
Jun 02, 2026Vintage Platinum Engagement Ring 0.65CT.Natural Princess cut Diamond Circ 1930'Est. $3,995-$4,465$3,250Modern JewelryValley Village, CA
Jun 02, 2026Vintage Filigree Platinum Ring 2.68ct. Natural Diamond Emerald ring circ 1930'sEst. $11,475-$12,825$9,400Modern JewelryValley Village, CA
Jun 02, 2026Platinum Vintage Engagement Ring 5.15ct. Natural Round Champagne Diamond 1930'sEst. $19,550-$21,850$16,000Modern JewelryValley Village, CA
Jun 02, 2026Platinum Vintage Filigree Engagement Ring 0.38ct. Natural Old Euro Cut DiamondEst. $3,315-$3,705$2,700Modern JewelryValley Village, CA
Jun 02, 2026Platinum Vintage Engagement ring 1.02ct. Natural Round Champagne DiamondEst. $4,845-$5,415$3,950Modern JewelryValley Village, CA
Jun 02, 2026Platinum Vintage Engagement Ring 1.12ct.Natural Teal Blue Sapphire GIA CertEst. $5,015-$5,605$4,100Modern JewelryValley Village, CA
Jun 02, 2026Platinum Vintage Ring 1.65ct.Natural Colombian Green Emerald & Diamond 1940'SEst. $8,415-$9,405$6,900Modern JewelryValley Village, CA
Jun 02, 20262.15ct. Platinum Vintage Filigree Natural Emerald Cabochon Ring Circ 1930'sEst. $8,075-$9,025$6,600Modern JewelryValley Village, CA
Jun 02, 20261.45ct. Platinum Vintage Engagement Ring Natural Euro Old cut Diamond Circ 1930'Est. $8,075-$9,025$6,600Modern JewelryValley Village, CA
Buy NowRare! Authentic Tiffany & Co. Circle Platinum 2.1ct Diamond Pin Brooch 1920's$5,950Chairish AuctionsNew York, NY
Jun 05, 2026Antique Platinum 1.50ct GIA Certified Diamond & Pearl Bypass RingEst. $6,201-$8,061$100Mynt AuctionsNew York, NY
Jun 02, 20267.50ct.Platinum Vintage Filigree Engagement Ring Natural Blue Sapphire Round CutEst. $15,215-$17,005$12,500Modern JewelryValley Village, CA
May 28, 2026Brichot 2.5ct Diamond Platinum Silver Manual Ladies WristwatchEst. $7,605-$9,886$100Mynt AuctionsNew York, NY
6 days LeftCraig Drake Gold Platinum Diamond Ruby Eye Siberian Tiger BroochEst. $3,445-$4,478$100Mynt AuctionsNew York, NY