Diamond and sapphire cluster ring. Vertically set with a central graduated row of five cushion shape old mine diamonds in open back rubover settings with a combined approximate weight of 2.70 carats, surrounded by a single row of forty-seven tapered baguette cut natural unenhanced sapphires in open back channel and rubover settings with a combined approximate weight of 0.47 carats, to an openwork cluster design featuring millegrain edging, a pierced gallery and intricate open backholing, leading to polished shoulders and flowing through to a solid flat shank. Marked 14 carat yellow gold and tested platinum, makers mark 'H&O', Austro-Hungarian, circa 1910.
