GIA report online : 2231489814 Shape.....................Cushion Cutting style ...............Modified brilliant cut Color..................... Greenish Blue Species............... Natural Beryl Variety.................Aquamarine Geographic origin....... Sri lanka Treatment : No indication of heating Weight : 13.17 carats Measurements : 15.25x12.86x10.16mm 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