True blue, I love you! Add that watery sparkle of the ocean to your favorite outfits! Fun fact: the aqua faceted glass is a rare vintage piece, as it was manufactured in West Germany.Materials are: vintage aqua round faceted glass cabochon, in a brass setting, with a gold plated brass adjustable ring form. Ring form can adjust from a size 6 to 11. Length and width of glass ring top is approximately 1-1/2".