An Amazing Antique Australian Opal and Diamond Ring Set in 14K White Gold, Vintage Art Deco, circa 1950. The center of this stunning estate ring holds a genuine single cut (not doublet or triplet) Australian Opal gemstone with beautiful natural color. There are peacock greens, blue-violets and warm undertones when the stone hits the light. The opal measures about 8 x 16mm oval. The opal is joined by 22 antique single cut sparkling diamonds. The setting is Retro Art Deco period, estimated to date circa 1950, and is composed of 14K white gold. Overall the ring measures about 15/16 inch long by about 11/16 inch wide from side to side. Ring Size: about 4 3/4 (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. An amazing piece of fine estate jewelry.