Antique sapphire and diamond ring. Set with a cushion shape old cut natural unenhanced sapphire to centre in an open back rubover millegrain setting with an approximate weight of 3.50 carats, flanked by two round old cut diamonds in open back rubover millegrain settings, with a combined weight of 1.80 carats, surrounded by a cluster of one hundred round eight cut diamonds in open back grain settings with a combined weight of 1.00 carats. The total approximate diamond weight is 2.80 carats, to a three stone design, with a fine millegrain openwork mount composed of stylized scrolls and geometric forms, open backholing and on a tapered shank engraved with foliate motifs. Tested platinum, circa 1905, accompanied by Gem and Pearl Laboratory report #09468.
