Double Amethyst Retro Ring With Diamonds - Set in rose and white gold, this unique retro piece would make a delightful cocktail ring or a fun piece of fine fashion jewelry. Each rectangular amethyst weighs approximately 15 carats and is brightened by the addition of a row of six diamonds that weigh .40 carats in total. The gently-flared top measures 25 x 19 mm from the top and the ring can be resized on request. Circa 1940.