Boucheron Paris diamond cluster ring. Set to centre with a round old cut diamond in an open back rubover setting with an approximate weight of 0.80 carats, flanked by two horizontally set rectangular baguette cut diamonds in open back rubover settings with a combined weight of 0.30 carats, surrounded by a cluster of round old cut diamonds of varying sizes in open back grain settings, twenty eight in total with a combined weight of 1.00 carat. The total approximate diamond weight is 2.10 carats, to an elegant bombe openwork cluster with a pierced conforming gallery and intricate fancy open backholing, flanked by trumpeted ridged shoulders flowing through to a solid tapered D-shape shank. Marked platinum, signed 'BOUCHERON PARIS', French, circa 1950s, accompanied by a Boucheron box.
