1 day LeftArt Deco Platinum Ring with Rose Cut Diamonds 1.20 Inch Long Size 8.25Est. $3,328-$4,326$100BidhausNew York, NY
Jul 07, 2026PLATINUM 2.10CT DIAMOND AND RUBY KITE PENDANT NECKLACEEst. $3,300-$13,200$3,200Robinhood AuctionsLas Vegas, NV
3 days LeftCamellia Sapphire and Diamond Halo Ring in PlatinumEst. $10-$100,000$10(1 bid)Gallery 63Atlanta, GA
Jul 10, 2026GIA Platinum 3 CT Cushion Lab Grown Blue Diamond Ring W/ .70 CTW Diamond Accents; Sz 6.25Est. $12,890-$16,789$1001111 Jewelry Store, LLCOwens Cross Roads, AL
7 hrs Left1960s Diamond Cluster Dome Ring in Platinum and 18K Gold by David WebbEst. $25,246-$32,819$100BidhausNew York, NY
Jul 19, 20262.13ctw Green Peridot Earrings in Platinum-Plated Sterling SilverEst. $100-$300$50Kings Auctions IncLas Vegas, NV
2 days LeftCartier Etincelle Platinum, Diamond, and Sapphire Eternity Band RingEst. $1,300-$1,800$900Hampton Estate AuctionNew York, NY
3 days LeftAntique Edwardian 14k Gold Platinum 0.42ct Diamond Buttercup RingEst. $2,353-$3,058$100BidhausNew York, NY
4 days LeftPlatinum Ladies Ring with 4.23ct GIA Certified Paraiba Tourmaline and 1.20ct tw Adjacent DiamondsEst. $25,255-$30,250$50Riverside GalleriesArcadia, CA
4 days LeftArt Deco Platinum Bracelet with Natural Pearls and DiamondsEst. $11,258-$14,635$100BidhausNew York, NY
3 days LeftPlatinum Chrysoberyl Cat's-Eye and Diamond Three-Stone RingEst. $10-$100,000$10Gallery 63Atlanta, GA
3 days LeftAntique 14k Gold Platinum Diamond Knights Amethyst Brooch 0.50ctwEst. $6,669-$8,669$100Mynt AuctionsNew York, NY
3 days LeftGerman 950 Platinum 18K Gold Convertible Necklace Bracelet SetEst. $31,083-$40,407$100Mynt AuctionsNew York, NY
3 hrs LeftTwo Tone Platinum Ladies Ring with 2.65ct GIA Certified Emerald and 2.09tcw Adjacent DiamondsEst. $23,250-$28,885$50Riverside GalleriesArcadia, CA
3 days LeftTwo Tone Platinum Ladies Ring with 2.57ct GIA Certified Emerald and 0.97tcw Adjacent DiamondsEst. $23,250-$28,050$50Riverside GalleriesArcadia, CA
6 days LeftPlatinum Ladies Pendant with 9.69ct Opal, 1.42ct Pink Sapphires and 0.28ct tw Adjacent DiamondsEst. $11,950-$14,550$50Riverside GalleriesArcadia, CA
6 days LeftTwo Tone Platinum Ladies Ring with 2.57ct GIA Certified Emerald and 0.97tcw Adjacent DiamondsEst. $23,250-$28,050$50Riverside GalleriesArcadia, CA
3 days LeftPlatinum Ladies Pendant with 9.69ct Opal, 1.42ct Pink Sapphires and 0.28ct tw Adjacent DiamondsEst. $11,950-$14,550$50Riverside GalleriesArcadia, CA
7 hrs LeftVintage Platinum Engagement Ring GIA 5.56ctw Old Cut DiamondsEst. $43,849-$57,003$100(1 bid)BidhausNew York, NY
2 days LeftVintage Platinum AGL 18.69ctw Color Change Sapphire Diamond RingEst. $21,970-$28,561$100Mynt AuctionsNew York, NY
3 days LeftTiffany & Co. Platinum 0.90 ct Engagement Ring with CertificateEst. $10,504-$13,655$100BidhausNew York, NY
5 days LeftPlatinum 9.59ct Oval Aquamarine Diamond Pendant Necklace Bead ChainEst. $2,964-$3,853$100Mynt AuctionsNew York, NY
1 hr LeftPlatinum GIA Certified 2.57ctw Burma Sapphire Diamond Ballerina RingEst. $4,537-$5,898$100Mynt AuctionsNew York, NY
7 hrs Left18k Yellow Gold Platinum 2.82ctw Ruby Diamond Baguette RingEst. $2,821-$3,667$100BidhausNew York, NY