Ruby and diamond cocktail ring. Set with seventeen round old cut natural unenhanced rubies to centre in open back grain settings with an approximate combined weight of 2.00 carats, flanked by eight round old cut diamonds, graduating in size, in open back grain settings with a combined approximate weight of 0.50 carats, to a broad smoothly conforming design with pierced backholing and rounded shoulders tapering through to a solid flat section shank. Marked 18 carat yellow gold and platinum, circa 1940.
