Edwardian sapphire and diamond coronet cluster ring. Centrally set with an oval cabochon natural unenhanced sapphire in an open back rubover setting with an approximate weight of 3.20 carats, encircled by a single row of ten cushion shape old mine cut diamonds in open back grain and rubover settings with a combined approximate weight of 1.40 carats, to an elegant flora form featuring polished edging, a decoratively pierced openwork gallery and open backholing, leading to raised shoulders with chenier detail and flowing through to a smooth D-shape shank. Tested platinum, English, circa 1910, accompanied by Gemological Certification Services Report #80253-84
