IGI Certified MOGOK BURMA Blue Sapphire 3.68 Ct. Natural Untreated OVAL Rare,Natural Untreated, Unheated Blue Sapphire from Mogok,Myanmar | Burma Jars,0.73Ct unheated Mogok blue sapphire Ring | Burma Jars,0.73Ct unheated Mogok blue sapphire Ring | Burma Jars,Pastel Blue Sapphire