David Webb Tiger Brooch Platinum 18K Yellow Gold Diamonds OnyxArt Deco Platinum Brooch with 83 Diamonds and Onyx 1.5 inchesAntique Larter & Sons 14k Gold Black Onyx Masonic Signet Ring19th Century Austrian Patinated Bronze Center Piece with OnyxEst. $13,897-$18,066
Unique Vintage 13k Yellow Gold Onyx Diamond Cocktail Ring 0.6ctAntique Art Deco White Gold Onyx Diamond Masonic Floral RingUnique Vintage 13k Yellow Gold Onyx Diamond Cocktail Ring 0.6ctEst. $5,575-$6,690
Bvlgari Serpenti Viper 18K Rose Gold Diamond and Onyx RingLOT ASSORTED CORAL, JADE, ONYX PASTE SET DIVIDER BEADSEst. $25-$1,000
Bvlgari Serpenti Viper 18K Rose Gold Diamond and Onyx RingEst. $10,000-$11,000
Custom 18k White Gold Onyx Amethyst Diamond Teardrop Pendant Necklace19th Century Austrian Patinated Bronze Center Piece with OnyxEst. $13,897-$18,066
Krementz 14k Yellow Gold Platinum Black Onyx Round CufflinksVintage Sterling & 14K Gold David Yurman Onyx RingEst. $25-$100,000
ART DECO BRONZE LADY STANDING ON ONYXEst. $200-$300
Vintage 14k Gold Black Onyx Diamond Cocktail Ring 0.60ctwEst. $2,353-$3,058
Bvlgari Serpenti Viper 18K Rose Gold Diamond and Onyx RingVintage 14k Gold Black Onyx Diamond Cocktail Ring 0.60ctw19th Century French Enameled Bronze Onyx Marble CenterpieceEst. $2,873-$3,734
18K Yellow Gold Ying Yang Cufflinks with Malachite Onyx Diamonds18k Gold Frosted Crystal Diamond Onyx RingEst. $1,500-$2,000
Custom 18k White Gold Onyx Amethyst Diamond Teardrop Pendant NecklaceEst. $5,731-$6,877
Roberto Coin 18K Rose Gold Diamond and Onyx RingEst. $6,000-$7,000
David Yurman Albion 18k Gold Onyx Diamond Cable Ring D.Y 925
