A Wonderful Antique Australian Opal Onyx Ring, Retro Victorian Style Gold Filigree, circa 1960. This beautiful estate ring holds a colorful genuine Australian opal at center measuring about 7 x 14mm that is inset into black onyx. The setting is classic antique Victorian style composed of yellow gold with a filigree border. Overall the ring measures about 3/4 inch long by about 11/16 inch wide from side to side. Ring Size: about 6 1/4 (could be resized by your jeweler or ask me about using mine before shipping). This ring was acquired through an estate collection and is in lovely vintage condition.