Vintage 18ct Gold & Plat Blue Topaz & Diamond Art Deco Ring

A fabulous vintage 18ct yellow Gold and Platinum Blue Topaz and Diamond Art Deco ring, comprising of a beautiful 3.70ct Round Cut Blue Topaz, claw set in a raised open back gallery. Lovely Platinum geometric shoulders each set with 5 beautiful Old Cut Diamonds - Total diamond Weight= .32ct. Leading to a Plain 18ct yellow Gold plain polished shank. Ring size= N, can be resized. Stamped 18CT - PT. Circa 1920.