2 days LeftA LATE 19H CENTURY DIAMOND BROOCH, CIRCA 1890 The multi-rayed star set throughout with old andEst. €1,200-€1,800€1,100(2 bids)Adam's AuctioneersIreland, Dublin
4 days LeftPlatinum 7 Carat Old Mine Diamond Brooch with 4 DiamondsEst. $6,838-$8,889$100(1 bid)Mynt AuctionsNew York, NY
2 days LeftA DIAMOND CRESCENT BROOCH Of crescent design, set with graduated old European-cut diamonds, mountedEst. €800-€1,200€850(2 bids)Adam's AuctioneersIreland, Dublin
2 days LeftART DECO PERIOD HIGH-KARAT GOLD AND PLATINUM DUAL-USE BROOCH-BANGLE WITH OLD-CUT DIAMONDS ANDEst. $10,000-$20,000$3,000oldstone ventures llcSummit, NJ
May 20, 2026Very Fine Old Large Carved Cameo BroochEst. $200-$400$100World Auction Gallery LLCEast Meadow, NY
1 day LeftAntique Yellow Gold Pendant Brooch with 5.60ctw Old Mine Cut DiamondsEst. $12,090-$15,717$100BidhausNew York, NY
7 hrs LeftDiamond and Sapphire Crown Brooch in 18K Gold and Platinum with 62 Old Mine StonesEst. $7,449-$9,683$100(1 bid)BidhausNew York, NY
1 day LeftPlatinum 7 Carat Old Mine Diamond Brooch with 4 DiamondsEst. $7,579-$9,852$100BidhausNew York, NY
6 days LeftAntique Gold Butterfly Brooch 6.30ct Old Mine Cut DiamondsEst. $19,136-$24,876$100BidhausNew York, NY
2 days LeftAntique Diamond Brooch in 14K White Gold and Platinum with 0.50ct Old Euro CutEst. $1,391-$1,808$100Mynt AuctionsNew York, NY
6 days LeftPlatinum and 18K Gold Art Deco Diamond Clip Brooch with 7 Carats Old Mine StonesEst. $7,579-$9,852$100BidhausNew York, NY
5 days LeftAntique Victorian 14k Gold .25ct Old Mine Cut Diamond Braided Bar Brooch PinEst. $1,443-$1,875$100Mynt AuctionsNew York, NY
9 hrs LeftVINTAGE 1950S PLATINUM DIAMOND PEACOCK BROOCH CLIP OLD EUROPEAN BAGUETTE CUTEst. $55,250-$61,750$45,500Modern JewelryValley Village, CA
4 days LeftDiamond and Sapphire Crown Brooch in 18K Gold and Platinum with 62 Old Mine StonesEst. $12,262-$13,794$4,350Diamond DepotNew York, NY
May 17, 20263.44 CARAT OLD EUROPEAN CUT AND OLD MINER CUT DIAMOND PLATINUM PIN BROOCHEst. $12,138-$13,566$9,900Modern JewelryValley Village, CA
3 days Left18K Yellow Gold Pearl and Old Mine Diamond BroochEst. $6,334-$7,126$1,850Diamond DepotNew York, NY
May 17, 20263.72CT OLD EUROPEAN CUT DIAMOND & 2.45CT EMERALD BROOCH IN 18K WHITE GOLD/SILVEREst. $26,554-$29,678$21,750Modern JewelryValley Village, CA
1 day LeftVintage Platinum 1.95ct Old Cut Diamond Ribbon Bow BroochEst. $4,023-$4,526$1,225Diamond DepotNew York, NY
May 24, 20262.50 CARAT OLD EUROPEAN CUT G VS DIAMOND PLATINUM PIN BROOCHEst. $8,058-$9,006$6,600Modern JewelryValley Village, CA
May 17, 2026ART DECO 4.80CT OLD MINE CUT DIAMOND EMERALD PLATINUM 18K GOLD LONG BROOCHEst. $12,005-$13,418$9,800Modern JewelryValley Village, CA
May 17, 20262.76 CARAT OLD EUROPEAN CUT I VS1-VS2 DIAMOND 14 KARAT YELLOW GOLD PIN BROOCHEst. $10,400-$11,623$8,500Modern JewelryValley Village, CA
Buy NowAntique Yellow Gold Pendant Brooch with 5.60ctw Old Mine Cut Diamonds$11,780Diamond DepotNew York, NY