Vintage Australian Opal Men's 18K Gold Ring. 100% pure solid natural Australian Opal has no cracks or other defects.Color - red (rare), orange, green, blue, purple. Opal Size: 21 x 16 x 5.5 mm. Ring Size: 9.75 (US) Sizable. The item "Huge Australian Pure Solid Black Opal Mens Ring 18K Gold HEAVY & Quality! $30K" is in sale since Saturday, May 22, 2021. This item is in the category "Jewelry & Watches\Men's Jewelry\Rings". The seller is "gershons-boutique" and is located in Illinois. This item can be shipped to United States.