Wishlist Product 1860s English enamel and old cut diamond ring Hexagonal art deco ring with a 1.8ct G/vvs trilliant cut diamond, ca 1930. Art deco platinum diamond and sapphire ring Three Stone 2.6 Carat Transitional Cut Diamond Engagement Ring, c.1940 1920/30s Art Deco No heat Sapphire and diamond bar brooch.