Gold, Coral Bead, Green Onyx and Diamond Clip-BroochEstimate: $1,500 - $2,500Starting Bid$750New York, NYDOYLE Auctioneers & Appraisers4.6(250)
Marlene Stowe, Onyx, Diamond, and Yellow Gold Pendant Brooch and EarringsEstimate: $2,500 - $3,500Starting Bid$1,300Chicago, ILFreeman's4.5(1.7k)
Onyx, Yellow Gold, and Diamond Pendant BroochEstimate: $3,000 - $5,000Starting Bid$1,500San Diego, Philadelphia, New York, Chicago, ILFreeman's4.5(1.7k)
Cellino, Yellow Gold and Onyx Bee BroochEstimate: $700 - $900Starting Bid$350San Diego, Philadelphia, New York, Chicago, ILFreeman's4.5(1.7k)
FEATUREDDe Grisogono 18Kt Yellow Gold Ladybug Brooch Pin with Coral, Onyx & DiamondsEstimate: $2,500 - $4,500Starting Bid$1,600Aventura, FLWinbids Auctions4.4(33)
Three Victorian Brooches Including Cameo Bar Pin and Onyx Seed Pearl BroochEstimate: $150 - $300Starting Bid$75Leeds, ALBryant Estate Sales4.4(17)
Nettie Rosenstein Rhinestone & Onyx Glass Owl Sunburst Brooch PinEstimate: $200 - $300Current Bid - 1 bid$10Hollywood, FLWilliamson Auction Gallery4.7(384)
Van Cleef & Arpels 18K Rose Gold with Carnelian and Onyx Lucky Animals Dachshund Brooch COAEstimate: $7,700 - $15,400Starting Bid$6,500Boca Raton, FLAero Auctions Inc
Buy NowBiedermeier 14k Yellow Gold Pendant Brooch Locket With Seed Pearls And Diamonds On A Black Onyx$3,000Manhattan, NYAllure Auctioneers4.4(26)
ART DECO ONYX AND DIAMOND BROOCH POSSIBLY BY HENRI PICQEstimate: £2,000 - £4,000Current Bid - 1 bid£1,000London, UKEtrusca Auctions4.1(30)
0.45CTW RUBY & ONYX STERLING SILVER ARROW BROOCHEstimate: $100 - $10,000Current Bid - 1 bid$10Tallahassee, FLFlorida Estate Sales Inc.4.3(493)
ART DECO PLATINUM DIAMOND & ONYX DOUBLE CLIP BROOCH CHARLTON & CO.Estimate: $77,350 - $86,450Starting Bid$63,500Valley Village, CAModern Jewelry4.5(223)
Elegant Vintage Art Deco Sterling Silver, Onyx and Marcasite Bar BroochEstimate: $100 - $200Current Bid - 1 bid$10Miami, FLPandora Auctions4.5(233)
Art Deco Diamond & Platinum Monkey BroochEstimate: $2,500 - $3,500Current Bid - 2 bids$2,000Glen Cove, NYRoland NY4.6(1.1k)
Stunning Ornate Vintage Gilt Sterling Silver & Black Onyx Pin BroochEstimate: $100 - $200Starting Bid$10Miami, FLPandora Auctions4.5(233)
Van Cleef & Arpels Lucky Animals Dachshund Brooch 18K Rose Gold with Carnelian and OnyxEstimate: $6,500 - $8,200Starting Bid$2,150Wilmington, DEMAISON DE BEAUBIGONNE LLC4.3(4)
Black Onyx / Pearl Brooch Pin 14Kt.Estimate: $1,443 - $2,067Starting Bid$20Los Angeles, CAAWS Auctioneers4.5(573)
VAN CLEEF & ARPELS LUCKY ANIMALS ONYX OBSIDIAN BROOCHEstimate: $16,270 - $22,535Starting Bid$100Beverly Hills, CANY Elizabeth 4.3(130)
Two Silver Brooches, Red Onyx and Amber.Estimate: $80 - $120Starting Bid$40Chadds Ford , PAWilliam Bunch Auctions & Appraisals4.6(897)
MICROMOSAIC BROOCH WITH FRUIT STILL LIFE ON BLACK ONYXEstimate: $8,000 - $10,000Starting Bid$2,000Lancaster, PANew York Auction House Inc4.4(29)
Ellagem, Diamond, Cultured Pearl, and Bicolor Gold Flower BroochEstimate: $3,000 - $5,000Starting Bid$1,500Chicago, ILFreeman's4.5(1.7k)
VINTAGE TIFFANY & CO. BROOCH CHRYSOPRASE 18K GOLD ONYXEstimate: $28,050 - $31,350Starting Bid$23,000Valley Village, CAModern Jewelry4.5(223)
Buy NowA Gold and Onyx Mourning Brooch and Necklace Including a 9k gold and onyx bead necklace suspending$800Monrovia, CAJohn Moran Auctioneers, Inc.4.7(525)
Very Unusual Vintage Sterling Silver & Black Onyx Lady Shaped Designer Brooch - SignedEstimate: $100 - $200Starting Bid$10Miami, FLPandora Auctions4.5(233)