Absolutely stunning Art Deco 1920s Black Onyx Diamond pierced drop earrings in 18K gold.
Antique black onyx white gold filigree ring with a pierced diamond center.
Beautiful 1930s Art Deco black onyx cameo ring embellished by a 14kt white gold lacy filigree mounting.
Fantastic antique 1880s black onyx seed pearl cameo ring in rose gold.
Lovely Art Deco hexagon shaped black onyx ring with a diamond center in white gold filigree mounting.
Antique Victorian black onyx seed pearl pendant.
This big, long estate black onyx diamond gold ring is amazing.
Bright green chalcedony diamond gold estate ring.
Antique Victorian black onyx mourning earrings in 14kt yellow gold with seed pearl accents.
Estate exquisite black onyx diamond bow and flower gold filigree ring.
Big, exciting vintage black onyx cabochon amethyst 14kt yellow gold ring.
This antique diamond black onyx insect pin has movable wings and legs.
