Round Solitaire Diamond Engagement Ring Platinum, 1.01 CT, 5.52 GramsChairish Auctions4.5(10.3k)$2,000
1.21 CARAT OLD EUROPEAN CUT AND TRIANGULAR DIAMOND PLATINUM ENGAGEMENT RINGModern Jewelry4.5(204)$5,700Mar 03, 2026
0.97 CARAT CIRCULAR BRILLIANT CUT I SI DIAMOND PLATINUM ART DECO RINGModern Jewelry4.5(204)$4,350Mar 03, 2026
1.55 Carat Round Brilliant Diamond Ring in 18K White Gold Tiffany StyleBidhaus4.2(837)$100Feb 18, 2026