Ruby and diamond coronet cluster ring. Set with one central cushion shape old cut natural unenhanced Burmese ruby in an open back split claw setting with an approximate weight of 0.80 carats, encircled by a single row of twelve cushion shape old mine diamonds in open back grain settings with an approximate total weight of 1.50 carats, to a circular coronet cluster with an ornate openwork foliate gallery, pierced backholing and flanked by raised inward tapered shoulders, and on a D-shape shank. Marked platinum, French, circa 1910.
