Two Synthetic Ruby, Black Onyx, 10k Yellow Gold Class RingsEst. $700-$900
ITALIAN ONYX & GILT METAL STANDING HALL TREEEst. $200-$400
(30) DECORATIVE MARBLE & ONYX EGGSEst. $150-$300
Chopard 18K White Gold Happy Diamonds Watch Onyx Dial18K White Gold Art Deco Diamond Onyx Emerald Tassel Necklace18K Yellow Gold Onyx Diamond Bangle Bracelet 7 InchEst. $34,921-$41,906
18K EMERALD ONYX AND DIAMOND EARRINGSEst. $8,000-$10,000
18K Yellow Gold Onyx Diamond Bangle Bracelet 7 Inch18k Yellow Gold Changeable Ruby Diamond Onyx Pendant Necklace 137gSanto Domingo Malachite & Black Onyx Reversible PendantEst. $400-$700
Authentic! Cartier Panther 18k White Gold Diamond Emerald Onyx Pendant NecklaceVintage 18K Gold & Onyx Men's RingEst. $150-$300
18K Platinum Lapis Lazuli Onyx Diamond Necklace 270 Stones 6.5 CtEst. $32,580-$39,096
Green Onyx Mantle Clock with Bronze MaidenEst. $10-$1,000
French Gilt Metal Mounted Onyx PedestalEst. $400-$600
1970s Platinum Diamond Onyx Enamel RingEst. $1,100-$2,200
David Webb Platinum 18K Yellow Gold Onyx Octagon Link NecklaceIconic 18K Yellow Gold Black Onyx Door-Knocker EarringsRoberto Coin Panda Bracelet 18k White Gold Onyx Diamond 6.5inEst. $16,809-$21,851
David Webb Platinum 18K Gold Onyx Coral Door Knocker EarringsPlatinum Diamond Coral Onyx Drop EarringsEst. $2,500-$4,000
David Webb Platinum 18K Gold Onyx Diamond Enamel NecklaceEst. $79,586-$103,461
1900 Art Deco French Sterling Silver Centerpiece with Green Onyx MarbleEst. $14,820-$19,266
BELLE EPOQUE 1900 Edwardian Necklace In Platinum Diamonds, Onyx & Natural PearlEst. $9,450-$10,395