SaveFeb 25, 2026Platinum GIA Certified 2.22ct No Heat Oval Ruby Diamond Halo RingDiamond Depot4.3(10)Est. $13,246-$15,895$4,750
SaveFeb 24, 2026Antique Art Deco Platinum Cushion Diamond Sapphire Halo Ring 1.85ctwDiamond Depot4.3(10)Est. $11,618-$13,941$4,050
SaveFeb 23, 2026Vintage Platinum 3.45ctw Channel Set French Cut Diamond Eternity BandDiamond Depot4.3(10)Est. $13,246-$15,895$4,550
SaveBuy NowVintage Platinum 3.45ctw Channel Set French Cut Diamond Eternity BandDiamond Depot4.3(10)$7,520
Save4 days LeftVintage Platinum GIA Certified 2.82ct Pear Cut Sapphire Ring with Baguette DiamondsDiamond Depot4.3(10)Est. $12,175-$14,610$4,500
Save2 days LeftPlatinum GIA Certified 2.22ct No Heat Oval Ruby Diamond Halo RingMynt Auctions4.4(831)Est. $7,722-$10,038$100
SaveBuy NowEdwardian Platinum GIA 1.29ctw Diamond Solitaire Engagement RingDiamond Depot4.3(10)$5,400
Save5 days LeftVintage Platinum GIA 2.14ctw Round Cut Diamond Cluster RingBidhaus4.2(838)Est. $4,628-$6,016$100
SaveBuy NowEdwardian Platinum GIA 1.29ctw Diamond Solitaire Engagement RingBidhaus4.2(838)$5,400(21 bids)
SaveFeb 25, 2026Vintage Platinum GIA 2.14ctw Round Cut Diamond Cluster RingDiamond Depot4.3(10)Est. $7,938-$9,526$2,700
SaveBuy NowTiffany & Co. Platinum 0.50ct Channel Set Diamond Eternity Wedding BandDiamond Depot4.3(10)$2,790
SaveBuy NowGIA Certified 1.66ct No Heat Cushion Ruby Platinum Solitaire RingDiamond Depot4.3(10)$4,740
Save2 days LeftPlatinum GIA Certified 2.57ctw Burma Sapphire Diamond Ballerina RingDiamond Depot4.3(10)Est. $7,782-$9,339$2,800
SaveBuy NowPlatinum 1.47ct Oval Royal Blue Sapphire Ring with Diamond AccentsDiamond Depot4.3(10)$2,410
SaveBuy NowPlatinum GIA Certified 2.57ctw Burma Sapphire Diamond Ballerina RingDiamond Depot4.3(10)$4,420
SaveBuy NowPlatinum GIA Certified 2.37ct No Heat Royal Blue Sapphire Diamond RingDiamond Depot4.3(10)$3,310