Vintage Platinum Engagement Ring with 4.02ct GIA G VVS1 Round DiamondDiamond Depot4.2(14)$72,0001 day Left
2.99 CARAT OLD EUROPEAN CUT SHAPE L-I1 DIAMOND PLATINUM ENGAGEMENT RINGModern Jewelry4.5(205)$31,000May 17, 2026
3.44 CARAT OLD EUROPEAN CUT O-J SI2-VS1 DIAMOND PLATINUM ART DECO RINGModern Jewelry4.5(205)$26,000May 17, 2026
AN EARLY 20TH CENTURY DIAMOND THREE-STONE RING The central old cushion-shaped diamond weighingAdam's Auctioneers4.3(12)€3,0004 days Left
Antique Vintage Art Deco Round Diamond Platinum Engagement Ring 1.60 CTWChairish Auctions4.5(10.4k)$2,400
