An 18 Karat White Gold, Burmese Sapphire and Diamond Ring, containing one oval mixed cut sapphire weighing approximately 4.21 carats and 12 old European cut diamonds weighing approximately 1.08 carats total.Stamp: 18K.Accompanied by an American Gemological Laboratories sapphire identification certificate number CS 55332, dated June 21, 2013, stating Mineral Type, Natural Corundum, Variety: Sapphire, Origin: Burma (Myanmar), Enhancement: No gemological evidence of heat, Clarity Enhancement: None. 5.80 dwts.