Diamond cocktail ring. Set with a round old cut diamond in an open back grain set box collet setting with a weight of 0.58 carats, flanked by five round old cut diamonds in open back grain settings with a combined weight of 0.35 carats. The total approximate diamond weight is 0.93 carats, to an asymmetric cocktail ring design with open backholing, the smoothly conforming broad shoulders tapering to a flat shank. Marked 18 carat yellow gold and platinum, maker's mark, French, circa 1940.
