A Stunning Antique Amethyst Rose Cut Marcasite Ring, Victorian Art Deco circa 1920s. This beautiful antique amethyst ring is surrounded by sparkling rose cut marcasites, a favorite of 18th and 19th Century jewelers who used them as a substitute for diamonds when the diamond supply was low. The setting is beautifully made of sterling silver. Overall the ring measures about 9/16 inch long by about 3/4 inch wide from side to side. Ring Size: about 7 (could be resized by your jeweler or ask me about using mine before shipping). This piece was acquired through an estate collection and is in lovely vintage condition.