A Rare and Gorgeous Antique Victorian - early Art Deco Australian Opal and Old Single Cut Diamond Ring Wedding, Vintage late 1800's to 1920 Ornate Gold Setting. This stunning antique ring holds an antique Australian Opal at its center measuring about 6mm in diameter. The stone shows beautiful natural colors of peacock green, blues - violets, and warm undertones in the light. The opal is a single cut natural stone, not a doublet or triplet. The setting is antique Victorian to early Art Deco period, with ornate period detailing, composed of 14K gold . The opal is paired with two genuine antique single cut diamonds that sparkle on the sides. Overall the ring measures about 5/8 inch long by about 11/16 inch wide from side to side. Ring Size: about 5 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.