Barry Kieselstein-Cord Gold, Banded Agate, Cultured Pearl and Diamond Pendant-BroochEstimate: $3,000 - $5,000Current Bid - 1 bid$1,500New York, NYDOYLE Auctioneers & Appraisers4.6(250)
14K Gold Carved Agate Cameo Brooch Pendant with Greek Key and Seed PearlsEstimate: $700 - $1,050Starting Bid$600Leeds, ALBryant Estate Sales4.4(17)
Frederician Agate Cameo of a Man in BroochEstimate: £1,500 - £2,000Starting Bid£1,300Harwich, EssexTimeLine Auctions Ltd.4.6(203)
Victorian Banded Agate BroochEstimate: $100 - $200Starting Bid$25Dania Beach, FLAkiba Galleries4.7(2.1k)
Buy NowAntique XIX Century Jewelry From England. A Large 1880s Victorian Era Agate And Shell Cameo Brooch$6,000Manhattan, NYAllure Auctioneers4.4(26)
Vintage Dendrite Agate Sterling Silver Brooch Pin 1.5 InchEstimate: $99 - $299Starting Bid$10Urbana, OHGolden Age Jewelry Auctions4.6(105)
FEATUREDAntique Scottish Amethyst And Agate 10K Gold Sword Design Kilt Pin Brooch 3 Inch Weight 7.1 GramsEstimate: $349 - $698Current Bid - 3 bids$72Urbana, OHGolden Age Jewelry Auctions4.6(105)
A QAJAR INSCRIBED AGATE AND GEM-SET SILVER BROOCH, PERSIA, 19TH-20TH CENTURYEstimate: £800 - £1,200Starting Bid£600London, UKPLAKAS4.3(11)
RUSSIAN GOLD MOSS AGATE AND DIAMOND PIN BROOCHEstimate: $2,000 - $3,000Starting Bid$50Brooklyn, NYAntique Arena Inc.4.5(1.1k)
Carved Blue Agate Cameo Diamond 14K Gold Brooch PendantEstimate: CA$100 - CA$50,000Current Bid - 3 bidsCA$140Montreal, QuebecKavanagh Auctions4.6(418)
AN ANTIQUE AGATE BROOCH. 4.5 cm x 3.75 cm.Estimate: £20 - £30Starting Bid£10Selborne, Hampshire Hannam's Auctioneers Ltd4.3(422)
Antique Chinese Silver Enamel Filigree Inlay & Carved Carnelian Agate Peony Flower BroochEstimate: $200 - $300Starting Bid$40Alhambra, CANeo FineArts Inc4.4(22)
Two Victorian Scottish Silver and Agate BroochesEstimate: $300 - $500Starting Bid$200New Orleans, LANew Orleans Auction Galleries4.6(309)
Antique 19th C Banded Black & White Agate BroochEstimate: $100 - $150Starting Bid$50Katonah, NYGemini Auction Company4.5(51)
VICTORIAN AGATE AND DIAMOND TURTLE BROOCHEstimate: £800 - £1,600Starting Bid£400London, UKEtrusca Auctions4.1(30)
Sterling Silver Moss Agate Oval Cabochon BroochEstimate: $90 - $200Current Bid - 1 bid$20Hollywood, FLLion and Unicorn4.7(2.6k)
VINTAGE STERLING SILVER MOSS AGATE SCOTTISH BROOCHEstimate: $120 - $10,000Starting Bid$30Tallahassee, FLFlorida Estate Sales Inc.4.3(493)
Italian Neoclassical 14k Yellow Gold Carved Banded Agate Cameo Brooch 19th CentEstimate: $1,500 - $2,000Starting Bid$1,200WILMINGTON, CATaylor & Harris4.7(185)
Buy NowVictorian Era Carved Agate And Shell Cameo Brooch With Greek Warrior Achilles, 14K Rose Gold Jewelry$1,600Manhattan, NYAllure Auctioneers4.4(26)
Victorian Scottish Gold and Agate Jewelry SuiteEstimate: $800 - $1,200Starting Bid$600New Orleans, LANew Orleans Auction Galleries4.6(309)
Three Pieces of Scottish & Scottish-Style JewelryEstimate: $500 - $800Starting Bid$300New Orleans, LANew Orleans Auction Galleries4.6(309)
ROMAN AGATE CAMEO OF MEDUSA IN GOLD PENDANTEstimate: £1,500 - £3,000Starting Bid£1,000London, UKApollo Art Auctions4.6(142)
Stylish Antique Art Nouveau European 800 Silver, Marcasite & Agate Pin BroochEstimate: $50 - $100Starting Bid$10Miami, FLPandora Auctions4.5(233)
ROMAN AGATE MEDUSA CAMEO IN GOLD PENDANTEstimate: £750 - £1,500Starting Bid£500London, UKApollo Art Auctions4.6(142)