GIA report online : 1226757718 Shape.....................octagon Cutting style ...............Modified brilliant cut Color..................... greenish Blue Species............... Natural corundum Variety.................Natural Sapphire Geographic origin....... Sri lanka Treatment : Normal heating only Weight : 3.94carats Measurements : 9.66x8.34x5.01mm Comments : None The stone was selected by Tal Naaman ,Gem Hunter and sent to the GIA Lab in New York Country of Origin is an opinion offered by the seller of this item; this opinion is not substantiated by an official opinion of the Laboratory Insured international shipping with Track & Trace