3 days LeftPLATINUM 3.75CT DIAMOND WREATH BROOCHEst. $3,300-$13,200$3,200Robinhood AuctionsLas Vegas, NV
2 days LeftArt Deco Platinum Brooch with 3.00 Ct Ruby and 96 DiamondsEst. $9,074-$11,796$100BidhausNew York, NY
Live Now1960's Platinum Diamond Brooch 12.00 Ct with 31 Round DiamondsEst. $10,842-$14,094$100BidhausNew York, NY
5 days LeftBLUE SAPPHIRE DIAMOND PLATINUM BROOCH PINEst. $2,925-$4,290$25NY Elizabeth Beverly Hills, CA
1 day LeftDiamond and Sapphire Crown Brooch in 18K Gold and Platinum with 62 Old Mine StonesEst. $7,449-$9,683$100BidhausNew York, NY
3 days LeftMid Century Diamond Ribbon Brooch in Platinum and White Gold 7.47ctwEst. $12,480-$16,224$100BidhausNew York, NY
Live NowArt Deco Platinum Brooch 27.70 Ct Diamonds E-G Color VVS-VS ClarityEst. $26,871-$34,932$100BidhausNew York, NY
17 hrs LeftArt Deco 14K Yellow Gold Platinum Pearl Diamond Brooch 4.00 CtEst. $7,722-$10,038$100BidhausNew York, NY
2 days LeftPlatinum Diamond Floral Brooch with 4.70 Carats Retro DesignEst. $5,005-$6,506$100BidhausNew York, NY
3 days Left1970s Platinum 18K Yellow Gold 8 Carat Diamond Scroll BroochEst. $8,944-$11,627$100BidhausNew York, NY
17 hrs LeftArt Deco Platinum Brooch 4.30 Ct Diamond 69 StonesEst. $4,602-$5,982$100BidhausNew York, NY
3 days LeftAntique Platinum Brooch with 3.00ct Old Mine DiamondsEst. $5,551-$7,216$100BidhausNew York, NY
1 day LeftEdwardian Platinum Brooch with 2.5 Carat Old-European Cut DiamondsEst. $4,862-$6,320$100BidhausNew York, NY
Live NowFrench 18K Gold Platinum Diamond Flower Brooch En Tremblant 4.20 CtEst. $8,593-$11,170$100Mynt AuctionsNew York, NY
6 days LeftVintage French 1950 Platinum Diamond Clip Brooch Necklace 8 ctEst. $30,537-$39,698$100Mynt AuctionsNew York, NY
3 days LeftPlatinum Art Deco Brooch with 8.40 Carat Diamonds and Emerald AccentEst. $9,347-$12,151$100BidhausNew York, NY
3 days LeftANTIQUE PLATINUM 1.0CT DIAMOND OPEN CIRCLE BROOCHEst. $1,100-$4,400$1,100Robinhood AuctionsLas Vegas, NV
17 hrs LeftArt Deco Platinum Diamond Clip Brooches 2.70 Ct DiamondsEst. $18,993-$24,690$100BidhausNew York, NY
17 hrs Left1950s Platinum 18K Yellow Gold 4 Carat Diamond Bow BroochEst. $5,213-$6,776$100BidhausNew York, NY
2 days LeftElegant 18K Platinum 6.05 Ct Diamond Brooch with 106 DiamondsEst. $5,408-$7,030$100BidhausNew York, NY
3 days LeftEdwardian Era 18k Gold Platinum Bar Brooch With GIA Ceylon Sapphire No HeatEst. $3,874-$5,036$100BidhausNew York, NY
2 days LeftPair of Platinum Sapphire and Diamond Ribbon Brooch Clips 5.1ctwEst. $9,620-$12,506$6,000BidhausNew York, NY
8 hrs LeftDiamond Platinum Art Deco Pendant Brooch on 14K White Gold NecklaceEst. $4,121-$5,357$100BidhausNew York, NY
3 days LeftArt Deco Platinum Brooch 7.70 Ct Diamonds E-G VVS-VS 2.5 inEst. $12,883-$16,747$100BidhausNew York, NY