An Art Deco Platinum, Natural Ceylon Sapphire and Diamond Ring, containing one square cushion cut sapphire measuring approximately 12.60 x 12.25 x 8.62 mm and 18 old European cut diamonds weighing approximately 0.70 carat total within a subtly scalloped setting with millegrain edge work and intricate openwork gallery.Accompanied by an American Gemological Laboratories sapphire identification and origin certificate number CS 61989, dated July 15, 2014, stating Mineral Type: Natural Corundum, Species: Sapphire, Origin: Ceylon (Sri Lanka), Enhancement: No gemological evidence of heat, Clarity Enhancement: None. 4.70 dwts.