Object Description
Sapphire and diamond coronet cluster ring. Set to centre with an octagonal mixed cut cut natural no heat sapphire in an open back rubover setting with an approximate weight of 0.90 carats, surrounded by eight round old cut diamonds in open back rubover and grain settings with an approximate combined weight of 1.40 carats, to a square coronet cluster design featuring scalloped millegrain edging, an ornately pierced gallery with scrolling details and fancy open backholing, flanked by elegant tri-split shoulders with grooved detailing flowing smoothly down to a solid D-shape shank. Marked platinum, circa 1920, accompanied by Gemmological Certification Services report #5784-0458.