A Gorgeous GIA Certified Large Black Opal Diamond Platinum Cocktail Ballerina Ring. Product specifications Jewelry Information Brand, Seller, or Collection Name Dover Jewelry Metal stamp PLAT Metal Platinum Material Metal Gem Type Black opal Setting Prong Item Length 1.22 inches Ring size 6.5 Sizing lower range 4.5 Sizing upper range 9 Certificate number GIA 2215450282…