An Important Platinum, Burmese Sapphire and Diamond Ring, containing one octagonal step cut weighing approximately 12.38 carats with 14 round transitional brilliant cut diamonds weigihng approximately 3.70 carats total.Accompanied by an American Gemological Laboratories sapphire identification and origin certificate number CS 83499-D, dated June 4, 2014, stating Mineral Type: Natural Corundum, Variety: Sapphire, Origin: Burma (Myanmar), Enhancement: No gemological evidence of heat, Clarity Enhancement: None. 7.90 dwts.