Ornate diamond cluster ring. Set to centre with one round old cut diamond in an open back grain setting with an approximate weight of 0.40 carats, flanked by six marquise shape old cut diamonds in open back rubover settings with a combined weight of 0.60 carats, further adorned with twenty eight round old cut diamonds in open back grain settings with a combined weight of 0.60 carats. The total approximate diamond weight is 1.60 carats, to an ornate cluster design featuring geometric openwork with millegrain edging, a pierced linear gallery and fancy shape open backholing, leading to smooth trumpeting shoulders and flowing through to a solid slim knife-edge shank. Marked platinum and iridium, indistinct maker's mark, American, circa 1950.
