A most amazing 1930s vintage cocktail ring that is a knockout! This certified Black Opal from the famed Lightning Ridge, Australia mine displays a wonderfully strong play-of-color with rolling flashes displaying intense red, yellow, green and blue hues. The floral pattern of this remarkable gemstone (weighs a whopping 7.39 carats) is surrounded by a delicate, scalloped halo set with 20 perfectly matched 2 1/2 carats of fiery old European cut diamonds accented with milgrain details.The total gemstone weight is 9.79 ctw. Our vast inventory is on display at our gallery in beautiful Santa Barbara, California. The item "Large Cushion Cut Carat Australian Black Opal Diamond Halo Vintage Cocktail Ring" is in sale since Monday, June 18, 2018. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone". The seller is "belroseantiquesdirect" and is located in Santa Barbara, California. This item can be shipped to United States.