Diamond cluster ring. Set to centre with one round old cut diamond in an open back rubover setting with an approximate weight of 0.95 carats, further set at the cardinal points with four round old cut diamonds in open back rubover settings with a combined weight of 1.00 carats, flanked by fourteen round eight cut diamonds in open back rubover and grain settings with a combined weight of 0.30 carats. The total approximate diamond weight is 2.25 carats, to an openwork cluster design featuring millegrain edging, a decoratively pierced scalloped gallery and open backholing, leading to ridged shoulders and flowing through to a solid shank. Marked platinum, French, circa 1920.
