Antique diamond marquise shape cluster ring. Set to centre with a round old cut diamond in an open back grain setting with a weight of 0.90 carats, encircled by a cluster of round old cut diamonds of varying sizes with two to the shoulders, thirty in total with a combined weight of 2.00 carats in open back grain and claw settings. The total approximate diamond weight is 2.90 carats, to an elegant marquise shape cluster with intricate pierced platinum claws and open backholing, flanked by fluted shoulders, leading to a solid D-shape shank. Marked platinum and yellow gold, French import marks, numbered '2626', circa 1910.
