Art Deco three stone diamond cluster ring, circa 1920.
Art Deco three stone diamond cluster ring. Set with three round old cut diamonds in open back grain settings with a combined approximate weight of 0.90 carats, further adorned with sixty round eight cut diamonds in open back grain settings with a combined weight of 0.60 carats. The total approximate diamond weight is 1.50 carats, to a vertical cluster in a bombé bezel with central linear detail and millegrain edging, the integrated shoulders with outer ridges and engraved geometric decoration flowing to a solid shank. Tested platinum, indistinct makers mark, numbered '9952', circa 1920.