Antique diamond cluster ring. Set to centre with a round old cut diamond in an open back claw setting with an approximate weight of 0.65 carats, surrounded by eighteen round old cut diamonds in open back grain settings with a combined weight of 0.50 carats. The total approximate diamond weight is 1.15 carats, all set to a softly curving cluster form featuring intricate linear openwork with millegrain edging, a decoratively pierced gallery and open backholing, smooth shoulders and flowing through to a solid shank. Marked platinum, French, circa 1920.
