PLATINUM ENGAGEMENT RING 13.17CT NATURAL OVAL SHAPE BLUE SAPPHIREModern Jewelry4.5(221)$45,500Oct 5, 2026
VINTAGE PLATINUM ENGAGEMENT RING 12.30CT. NATURAL BLUE SAPPHIRE RADIANT GIA CERTModern Jewelry4.5(221)$23,000Oct 5, 2026
Platinum Ring with Marquise Diamond Center and Sapphire Accents Size 7.5Diamond Depot4.3(16)$4,7004 days Left
Vintage GIA Certified 5.50ct No Heat Blue Sapphire Diamond Bombe RingDiamond Depot4.3(16)$4,2001 day Left
10.69ct Tanzanite and 2.25ctw Diamond Platinum Ring (GIA CERTIFIED)Redland Realty & Auction$2,500Sep 29, 2026
Vintage GIA Certified 13.89ct Blue Star Sapphire Diamond Ring in PlatinumBidhaus4.2(881)$100Sep 29, 2026
