1 day LeftOscar Heyman platinum diamond circle brooch 7 cttwEst. $10,296-$13,384$100Mynt AuctionsNew York, NY
Jul 18, 20262.85ct Blue Sapphire, 2.50ctw Diamond, Platinum BroochEst. $10,000-$11,000$1,400GWS Auctions Inc.Maitland, FL
3 days LeftDavid Webb Monkey Brooch Platinum 18K Gold Pearl Emerald EyesEst. $18,447-$23,981$100Mynt AuctionsNew York, NY
1 day LeftDavid Webb 1970s Platinum 18K Gold Turquoise Diamond BroochEst. $37,466-$48,705$100Mynt AuctionsNew York, NY
5 days LeftVictorian Schumann Sons diamond brooch 18K yellow gold platinumEst. $5,278-$6,861$100Mynt AuctionsNew York, NY
5 days LeftArt Deco Platinum Diamond Brooch 0.75 ctw 2 inEst. $2,002-$2,602$100Mynt AuctionsNew York, NY
4 days LeftEuropean 18k Yellow Gold Platinum Turquoise Diamond Paisley BroochEst. $13,403-$17,423$100Mynt AuctionsNew York, NY
1 day LeftDavid Webb Platinum Flower Brooch 22 Carat Diamond Signed WEBBEst. $67,353-$87,558$100Mynt AuctionsNew York, NY
1 day LeftExquisite 20 Carat Diamond Bird Brooch in Platinum and 18K Yellow GoldEst. $25,584-$33,259$100Mynt AuctionsNew York, NY
4 days LeftDavid Webb Platinum 18K Yellow Gold Coral Capricorn BroochEst. $51,051-$66,366$100Mynt AuctionsNew York, NY
Jul 18, 20263.80ctw VS1-VS2/G-H Diamond, Pearl and Platinum BroochEst. $18,000-$19,000$2,400GWS Auctions Inc.Maitland, FL
5 days LeftDavid Webb Floral Brooch 40 Carat Old Cut Diamonds Platinum 18K GoldEst. $93,171-$121,122$100Mynt AuctionsNew York, NY
9 hrs LeftFrench Art Deco Diamond Platinum Double Clip Brooch 4.25 ctEst. $27,287-$35,473$20,750Mynt AuctionsNew York, NY
5 hrs LeftFrench Art Deco Platinum Diamond Brooch 3.75ct GSIEst. $13,156-$17,102$100Mynt AuctionsNew York, NY
Jul 19, 2026Edwardian French Platinum-Topped 18K Gold Convertible Brooch-PendantEst. €2,000-€2,500€1,500Horizontal EncherePuteaux, paris
2 hrs LeftDavid Webb 1960s Platinum Moonstone Sapphire Diamond BroochEst. $27,755-$36,081$100BidhausNew York, NY
Jul 18, 20265.00ctw Diamond, 4.00ctw Sapphire and Platinum BroochEst. $14,000-$15,000$1,800GWS Auctions Inc.Maitland, FL
6 days LeftPLATINUM 2.10CT DIAMOND AND RUBY RETRO BROOCHEst. $4,200-$16,800$4,200Robinhood AuctionsLas Vegas, NV
Jul 18, 20265.80ctw Diamond and Platinum 1.5" Vintage BroochEst. $18,500-$19,500$2,400GWS Auctions Inc.Maitland, FL
5 days LeftPlatinum Art Deco Diamond Brooch with 5.25 Carats G-H VVS-VS StonesEst. $5,005-$6,506$2,450BidhausNew York, NY
5 days LeftMid Century Diamond Ribbon Brooch in Platinum and White Gold 7.47ctwEst. $12,480-$16,224$100Mynt AuctionsNew York, NY
11 hrs LeftPlatinum Flower Brooch with 2.81 Ct Emerald and 17.55 Ct DiamondsEst. $20,358-$26,465$100BidhausNew York, NY
Jul 14, 2026RECTANGULAR BROOCH IN PLATINUM AND 18 KT GOLD WITH DIAMONDS AND SAPPHIRESEst. €800-€1,200€800SPANGARO & COUdine, Italy