The original Art Deco Ring is marked 18k and is white gold with a rhodium plating. It weighs 4.7 grams. The enameling at the top has the colors of black, green and red. The enameling is not perfect but does not take away from the beauty of the ring. Bezel set at the top is a green oval natural jade . It measures 12.5 mm x 10.0 mm. The ring wears to a size 3.5 and can be resized.