Bailey Banks & Biddle cabochon sapphire and diamond ring, circa 1930.
Bailey, Banks & Biddle cabochon sapphire and diamond ring. Set to the centre with a sugarloaf cabochon natural unenhanced sapphire in an open back rubover setting with an approximate weight of 2.00 carats, flanked by six square baguette cut diamonds in open back rubover channel settings with an approximate combined weight of 0.40 carats, to a solitaire design with polished edges and intricate back holing, the heavy integrated shoulders tapering to a solid shank. Marked 18 carat white gold, maker's mark 'BBB' for Bailey Banks and Biddle, numbered '63365', American, circa 1930.