Marquise shape diamond cluster ring, American, circa 1920.
Marquise shape diamond cluster ring. Set vertically to centre with two round old cut diamonds in open back grain settings with an approximate combined weight of 1.50 carats, further set with fifty round eight cut diamonds in open back grain settings with a combined weight of 1.00 carats. The approximate total diamond weight is 2.50 carats to an ornate marquise shape cluster design featuring millegrain edging, a decoratively pierced gallery with chenier detail and open backholing, leading to lightly engraved trumpeting shoulders and flowing through to a solid smooth shank. Tested platinum and iridium, American, circa 1920.