An Amazing Antique Australian Opal and Diamond Ring Set in 14K Yellow Gold, Vintage Retro Art Deco, circa 1950. The center of this stunning estate ring holds a genuine single cut (not doublet or triplet) Australian Opal gemstone with intense color. There are fire reds, and intense blue-greens, with golden tones and bits of violet-blue when the stone hits the light. The opal measures about 9 x 13mm oval. The opal is joined by 6 fine white sparkling diamonds. The setting is Retro Art Deco period, estimated to date circa 1950, and is composed of 14K yellow gold. Overall the ring measures about 1/2 inch long by about 3/4 inch wide from side to side. Ring Size: about 8 (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.