Jul 18, 2026GIA Colombian Emerald VS2 Diamond Platinum RingEst. $10,000-$15,000$2,250North American Auction Co.Bozeman, MT
Jul 18, 2026GIA RARE NO Heat Ruby Diamond Platinum RingEst. $12,000-$22,000$2,250North American Auction Co.Bozeman, MT
1 day LeftVintage GIA Certified 3.65ctw No Heat Cushion Sapphire Diamond Ring in PlatinumEst. $8,671-$11,272$100BidhausNew York, NY
Jul 30, 2026Platinum Setting with 2.91ct Pink Tourmaline and 0.96ct Diamond NecklaceEst. $9,152-$10,258$50Riverside GalleriesArcadia, CA
Jul 29, 2026Platinum Ladies Ring with 2.75ct GIA Certified Natural Sapphire and 0.95tcw Adjacent DiamondsEst. $12,525-$15,998$50Riverside GalleriesArcadia, CA
Jul 29, 2026Platinum Ladies Ring with 14.46mm Tahitian Pearl and 0.98tcw Adjacent DiamondsEst. $17,858-$21,250$50Riverside GalleriesArcadia, CA
Jul 29, 2026Platinum Setting with 2.01ct Ruby and 1.05ct Diamond Ladies RingEst. $13,258-$17,024$50Riverside GalleriesArcadia, CA
Jul 27, 2026Two Tone Platinum Ladies Ring with 2.57ct GIA Certified Emerald and 0.97tcw Adjacent DiamondsEst. $23,250-$28,050$50Riverside GalleriesArcadia, CA
Jul 29, 2026Platinum Ladies Ring with 1.02ct GIA Certified Sapphire and 0.93tcw Adjacent DiamondsEst. $19,525-$23,995$50Riverside GalleriesArcadia, CA
Jul 31, 2026Platinum Ladies Ring with 2.09ct GIA Certified Sapphire and 0.91tcw Adjacent DiamondsEst. $26,525-$30,250$50Riverside GalleriesArcadia, CA
Jul 18, 2026GIA RARE Burmese Ruby VS2 Diamond Platinum RingEst. $15,000-$25,000$2,500North American Auction Co.Bozeman, MT
Jul 30, 2026Two Tone Platinum Ladies Ring with 2.57ct GIA Certified Emerald and 0.97tcw Adjacent DiamondsEst. $23,250-$28,050$50Riverside GalleriesArcadia, CA
Jul 29, 2026Platinum Ladies Ring with 2.03ct GIA Certified Spinel and 0.95tcw Adjacent DiamondsEst. $15,250-$19,175$50Riverside GalleriesArcadia, CA
Jul 28, 2026Platinum Ladies Ring with 2.09ct GIA Certified Sapphire and 0.91tcw Adjacent DiamondsEst. $26,525-$30,250$50Riverside GalleriesArcadia, CA
Jul 28, 2026Platinum Ladies Ring with 1.23ct GIA Certified Burmies Ruby and 0.94tcw Adjacent DiamondsEst. $13,250-$16,995$50Riverside GalleriesArcadia, CA
Jul 31, 2026Platinum Ladies Ring with 4.03ct GIA Certified Emerald and 0.77ct tw Adjacent DiamondsEst. $22,555-$26,200$50Riverside GalleriesArcadia, CA
Jul 28, 2026Platinum Ladies Ring with 4.03ct GIA Certified Emerald and 0.77ct tw Adjacent DiamondsEst. $22,555-$26,200$50Riverside GalleriesArcadia, CA
Jul 30, 2026Two Tone Platinum Ladies Ring with 2.65ct GIA Certified Emerald and 2.09tcw Adjacent DiamondsEst. $23,250-$28,885$50Riverside GalleriesArcadia, CA
Jul 30, 2026Platinum Ladies Ring with 4.23ct GIA Certified Paraiba Tourmaline and 1.20ct tw Adjacent DiamondsEst. $25,255-$30,250$50Riverside GalleriesArcadia, CA
Jul 27, 2026Platinum Ladies Ring with 4.23ct GIA Certified Paraiba Tourmaline and 1.20ct tw Adjacent DiamondsEst. $25,255-$30,250$50Riverside GalleriesArcadia, CA
Jul 27, 2026Two Tone Platinum Ladies Ring with 2.65ct GIA Certified Emerald and 2.09tcw Adjacent DiamondsEst. $23,250-$28,885$50Riverside GalleriesArcadia, CA
Jul 31, 2026Platinum Ladies Ring with 3.02ct GIA Certified Unheated Sapphire and 0.49ct Adjacent DiamondsEst. $19,250-$24,455$50Riverside GalleriesArcadia, CA
Jul 29, 2026Platinum Setting with 0.98ct Emerald and 0.54ct Diamond RingEst. $6,587-$7,745$50Riverside GalleriesArcadia, CA
Jul 28, 2026Two Tone Platinum Ladies Ring with 5.29ct GIA Certified Ruby and 1.67tcw DiamondsEst. $26,250-$30,025$50Riverside GalleriesArcadia, CA