May 29, 2026Vintage 14k Gold Platinum GIA 19.47ct Aquamarine Diamond Cocktail RingEst. $14,124-$15,889$5,400Diamond DepotNew York, NY
7 days LeftAntique Art Deco Platinum GIA Certified 1.76ctw Diamond Solitaire RingEst. $12,476-$14,035$4,450Diamond DepotNew York, NY
May 28, 2026Vintage Mid Century Platinum GIA 16.09mm Pearl & 6ct Diamond RingEst. $26,792-$30,141$7,600Diamond DepotNew York, NY
Buy NowPlatinum GIA Certified 1.81ct Vivid Red Ruby & Diamond Wrap Ring$4,740Diamond DepotNew York, NY
Buy NowGIA Certified 18K Gold Platinum Rubellite Tourmaline Diamond Navette Brooch$9,370Diamond DepotNew York, NY
Buy Now1.03 Carat Round Diamond Engagement Ring 18K Yellow Gold GIA Appraisal$4,660(16 bids)Mynt AuctionsNew York, NY
Buy Now18k Yellow Gold GIA 2.55ctw No Heat Red Ruby Diamond Wide Band Ring$8,450Diamond DepotNew York, NY
Buy NowArt Deco Platinum GIA Certified 1.17ct Marquise Diamond Sapphire Bracelet$14,000Diamond DepotNew York, NY
6 days LeftVintage 14K Yellow Gold GIA Certified 1.04ct Old Cut Diamond Engagement RingEst. $8,003-$9,004$3,150Diamond DepotNew York, NY
Jun 02, 2026Platinum Vintage Engagement Ring 3.16ct.Natural Yellow Cushion Diamond GIA CertEst. $41,650-$46,550$34,250Modern JewelryValley Village, CA
Buy NowAntique Art Deco Platinum GIA Certified 1.76ctw Diamond Solitaire Ring$7,380(21 bids)Mynt AuctionsNew York, NY
Jun 02, 2026Platinum Vintage Filigree Engagement Ring 2.78ct. Natural Old Mine Diamond GIAEst. $33,065-$36,955$27,000Modern JewelryValley Village, CA
Buy NowAntique Art Deco Platinum Engagement Ring GIA 0.92ct Diamonds$3,310(18 bids)Mynt AuctionsNew York, NY
May 28, 2026Antique Art Deco Platinum 0.70ct GIA Diamond Engagement RingEst. $4,023-$4,526$1,450Diamond DepotNew York, NY
Buy NowGIA Certified 15.68ct Vivid Purple Star Sapphire & Diamond Platinum Ring$23,260Diamond DepotNew York, NY
Jun 01, 2026Vintage White Gold GIA Certified 1.12ct Diamond Engagement RingEst. $3,809-$4,951$2,900BidhausNew York, NY
Buy NowVintage GIA Certified 5.50ct No Heat Blue Sapphire Diamond Bombe Ring$8,450Diamond DepotNew York, NY
Buy NowTiffany & Co Platinum Engagement Ring 6.53ct D/VVS1 Diamond with Certificates$833,470BidhausNew York, NY
2026Vintage Platinum GIA 2.93ctw Emerald Cut Baguette Diamond Engagement RingSee Sold PriceBidhausNew York, NY
May 31, 2026Antique Platinum GIA Certified Round Diamond RingEst. $9,000-$11,000$5,000Hannosh'sMacomb, MI