Starts Jul 01TIFFANY & CO.: AN ANTIQUE PLATINUM AND BERYL INTAGLIO CROSS PENDANT, CIRCA 1910Est. $10,000-$15,000$8,000BonhamsBoston, MA
3 days LeftArt Deco Platinum Brooch 16.75 Ct Diamonds D-E VVS1-VS1Est. $29,989-$33,588$9,600Diamond DepotNew York, NY
Live NowDavid Webb Medusa Diamond Pendant Brooch in Platinum and 18K Yellow GoldEst. $29,636-$33,192$10,750Diamond DepotNew York, NY
23 hrs LeftPlatinum 3.37ctw Cushion Aquamarine Diamond Cocktail RingEst. $3,270-$3,663$1,200Diamond DepotNew York, NY
3 days LeftArt Deco Platinum 7.80 Ct Diamond Brooch with F-H ColorEst. $24,199-$27,103$9,100Diamond DepotNew York, NY
2 days LeftTiffany & Co. Bean Diamond Necklace Platinum (Pt950) Women'S Silver/ Clear Tone.Est. $2,375-$2,850$630SEUYCORaleigh, NC
3 days LeftGIA Certified Platinum Stud Earrings with 2.29 Ct Diamond PairEst. $45,923-$51,434$20,750Diamond DepotNew York, NY
2 days LeftVictorian French Platinum Diamond Pearl Necklace Brooch with 17 inch ChainEst. $12,199-$13,663$4,150Diamond DepotNew York, NY
Live Now28.50 Ct Diamond Chandelier Earrings in Platinum F-G VVS1-SI1Est. $78,477-$87,894$25,750Diamond DepotNew York, NY
Starts Jul 01BLACK STARR & FROST: AN ART DECO PLATINUM, SAPPHIRE, AND DIAMOND BRACELETEst. $5,000-$7,000$4,000BonhamsBoston, MA
2 days LeftTiffany & Co. Curved Band Ring, 1PD (One Diamond), Pt950 Platinum, Size 7.5, Women'sEst. $600-$900$100IntervendueMIAMI, FL
Live NowVintage Platinum 1.43ct GIA Oval Boulder Opal Ring with Diamond AccentsEst. $4,641-$5,197$1,525Diamond DepotNew York, NY
2 days Left70 Inch Platinum Necklace With 29.5ct Marquise Diamonds By The YardEst. $55,051-$61,657$24,750Diamond DepotNew York, NY
2 days LeftPlatinum GIA Certified 5.48ct Blue Black Opal Ring with Baguette DiamondsEst. $5,038-$5,643$1,725Diamond DepotNew York, NY
3 days LeftDavid Webb Platinum 18K Gold Onyx Coral Door Knocker EarringsEst. $42,918-$48,068$15,500Diamond DepotNew York, NY
23 hrs LeftDavid Webb 1969 Platinum 18K Gold Bracelet with Emeralds and RubiesEst. $123,737-$138,586$43,000Diamond DepotNew York, NY
2 days LeftElegant Platinum Necklace with 39 Diamonds 30.35 Ct E-G VS1-SI2Est. $190,723-$213,609$71,000Diamond DepotNew York, NY
3 days LeftGIA Platinum Ring Pinkish Purple Ceylon Sapphire Diamonds Size 6.5Est. $9,392-$10,519$3,350Diamond DepotNew York, NY
3 days LeftPlatinum 0.90 Ct. Diamond Ring with 0.70 Ct. Center StoneEst. $3,491-$3,910$1,125Diamond DepotNew York, NY
3 days LeftPlatinum 3.21 Ct GIA Certified Round Diamond Ring with BaguettesEst. $80,797-$90,493$27,000Diamond DepotNew York, NY