A Wonderful Antique Moonstone Opal Ring Vintage Retro Modernist Sterling Silver, circa 1950's. The center of this beautiful vintage ring holds a genuine opal gemstone with the luminous clear quality of moonstone with a confetti of colors when turned in the light. The opal measures about 7x9mm oval. The ring setting is composed of sterling silver. Overall the ring measures about 1/2 inch long by about 3/4 inch wide from side to side. Ring Size: about 7 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.