GIA report online : 6234319279 Shape....................... Octagonal Cutting style:................ modified brilliant cut Color........…………. Blue Species...................Natural Corundum Variety………………….. Natural Sapphire Geographic origin........ Sri Lanka Weight : 5.15 carats Measurements : 10.29x8.79x6.18mm Treatment : heated Comments : None . The stone was selected by Tal Naaman ,Gem Hunter and sent to the GIA Lab in New York Hunter comment : 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 #weddingcampaign