Sapphire and diamond cocktail ring. Set to centre in a half-cylindrical form sixteen round old cut diamonds in open back grain setting with a combined approximate weight of 0.50 carats, flanked by twelve rectangular step cut natural unenhanced sapphires in open back grain settings with a combined approximate weight of 1.00 carats, all to a symmetrical geometric cocktail ring featuring concave and convex details, polished edges and open backholing, leading to trumpeting ridged shoulders and flowing through to a tapering flat ridged shank. Tested yellow gold and platinum, Swedish, circa 1940.
