12 hrs LeftElegant Platinum Flower Basket Brooch with Diamonds and GemstonesEst. $20,787-$27,023$100Mynt AuctionsNew York, NY
2 days LeftAntique 18K Gold Platinum Diamond Pearl Brooch 2.5 InchesEst. $18,447-$23,981$100BidhausNew York, NY
3 days LeftMid Century Diamond Ribbon Brooch in Platinum and White Gold 7.47ctwEst. $12,480-$16,224$100Mynt AuctionsNew York, NY
Jul 24, 2026Edwardian French antique jewelry platinum diamond conch bead brooch Gilder certificateEst. $7,000-$20,000$7,000HEAVEN'S EARTH ANTIQUE CO LLCSan Francisco, CA
18 hrs LeftArt Deco Platinum Brooch 19.40 Ct Diamond EleganceEst. $25,792-$33,529$100BidhausNew York, NY
5 days LeftCraig Drake Gold Platinum Diamond Ruby Eye Siberian Tiger BroochEst. $3,809-$4,951$100Mynt AuctionsNew York, NY
Live NowPlatinum Art Deco Diamond Brooch Pendant with 4.60 Carats TotalEst. $6,773-$8,804$100BidhausNew York, NY
3 days LeftAntique French 18k Gold Platinum Diamond Mosaic Brooch 2.20ctwEst. $2,964-$3,853$100Mynt AuctionsNew York, NY
Jul 24, 2026Edwardian France 18k gold lapped platinum diamond conch bead brooch old cut diamond Kong Kezhu.Est. $7,000-$20,000$7,000HEAVEN'S EARTH ANTIQUE CO LLCSan Francisco, CA
2 days LeftPlatinum Diamond Double Clip Brooch with 7.2cttw by Tiffany & Co.Est. $14,716-$19,130$100BidhausNew York, NY
2 days LeftPlatinum and 18K Gold Maltese Brooch with Diamonds and Emeralds by David WebbEst. $28,639-$37,230$100BidhausNew York, NY
18 hrs LeftOscar Heyman platinum diamond circle brooch 7 cttwEst. $10,296-$13,384$100BidhausNew York, NY
6 days LeftGIA Certified 51.68ct Sapphire Ruby Diamond Double Leaf Brooch in Platinum 18k GoldEst. $23,699-$30,808$100Mynt AuctionsNew York, NY
18 hrs LeftVintage 6.5ctw Diamond Leaf Brooch in Gold and PlatinumEst. $10,478-$13,621$100BidhausNew York, NY
Live NowArt Deco Platinum Diamond Brooch 11.15 Ct F VS1-SI2 4.75 inEst. $8,879-$11,542$100Mynt AuctionsNew York, NY
5 days Left1960's Platinum Deco Diamond Brooch Pendant 1.85 Ct Center 62 DiamondsEst. $11,258-$14,635$100Mynt AuctionsNew York, NY
9 hrs LeftElegant Platinum Brooch with 15 Carats Diamonds and EmeraldsEst. $23,881-$31,045$100BidhausNew York, NY
2 days LeftConvertible Art Deco Platinum 18K Gold Diamond Brooch with Detachable EarringsEst. $7,995-$10,393$5,100BidhausNew York, NY
7 days LeftPlatinum Art Deco Brooch with Diamonds and Sapphires 3 InchEst. $4,121-$5,357$100Mynt AuctionsNew York, NY
14 hrs LeftArt Deco Platinum Diamond Brooch 12.40 Ct with Pear Baguette Round StonesEst. $14,924-$19,401$8,700BidhausNew York, NY
9 hrs LeftArt Deco Platinum 18.20 Ct Diamond Brooch with 230 European CutsEst. $17,641-$22,933$100BidhausNew York, NY
3 days LeftPlatinum Brooch with 9.30 Carat Old Mine Cut Diamonds Art Deco EraEst. $9,490-$12,337$100BidhausNew York, NY
Live NowElegant 18K Yellow Gold Platinum 7.50 Ct Diamond BroochEst. $8,593-$11,170$100BidhausNew York, NY