3 days LeftAntique Art Nouveau 10k Yellow Gold Signet Ring with Black Onyx and Cubic ZirconiaEst. $1,352-$1,757$100Mynt AuctionsNew York, NY
3 hrs LeftAntique Larter & Sons 14k Gold Black Onyx Masonic Signet RingEst. $4,066-$4,554$1,400Diamond DepotNew York, NY
1 day LeftANTIQUE 10K YELLOW CABOCHON BLACK ONYX OVAL GYPSY SIGNET MEN'S RING -9.5GEst. $1,615-$1,805$1,325Modern JewelryValley Village, CA
1 day LeftAntique Art Deco 14k White Gold Onyx Diamond Cocktail RingEst. $1,812-$2,029$560Diamond DepotNew York, NY
3 hrs LeftAntique Art Deco 10K Yellow Gold Black Onyx Diamond RingEst. $2,607-$2,920$1,000Diamond DepotNew York, NY
3 days LeftAntique Art Deco 10K Yellow Gold Black Onyx Diamond RingEst. $1,534-$1,994$100BidhausNew York, NY
4 days LeftAntique 10k Yellow Gold Cushion Onyx Buckle Cocktail RingEst. $585-$760$100BidhausNew York, NY
Aug 06, 2026Antique Inlaid Onyx Hematite Gold Bead BraceletEst. $400-$600$200Auctions at ShowplaceAstoria, NY
Jul 05, 202614k White Gold Filigree Ring with Black Onyx and Old Mine Cut DiamondEst. $1,157-$1,504$100BidhausNew York, NY
1 day LeftANTIQUE VICTORIAN MOURNING 14K ROSE GOLD SEED PEARL ONYX WHEAT PIN BROOCH 2 5/8"Est. $1,275-$1,425$1,050Modern JewelryValley Village, CA
Jul 12, 2026DIAMOND 18K GOLD HORSESHOE RING YELLOW GOLD & PLATINUM ART DECO ANTIQUEEst. $6,041-$6,752$4,950Modern JewelryValley Village, CA
Buy NowAntique 10k Yellow Gold Cushion Onyx Buckle Cocktail Ring$570(14 bids)Mynt AuctionsNew York, NY
3 days LeftAntique Art Nouveau 10k Yellow Gold Signet Ring with Black Onyx and Cubic ZirconiaEst. $2,298-$2,574$690Diamond DepotNew York, NY
Jul 07, 2026Antique 10k Yellow Gold Cushion Onyx Buckle Cocktail RingEst. $994-$1,113$280Diamond DepotNew York, NY
2 days LeftAntique Art Deco 14k White Gold Onyx Diamond Cocktail RingEst. $1,066-$1,385$100BidhausNew York, NY
Buy NowArt Deco onyx diamond filigree pendant 16 inch white gold chain$3,310(16 bids)BidhausNew York, NY
Buy NowAntique Art Deco White Gold Onyx Diamond Masonic Floral Ring$1,380(16 bids)BidhausNew York, NY