GIA report online : 6237785785 Shape.......................octagonal Cutting style:................ Step cut Color........…………. Yellowish Green Species...................Natural Corundum Variety………………….. Natural Sapphire Geographic origin........ Srilanka Ceylon Weight : 4.52 carats Measurements : 9.27x8.54x5.36mm Treatment : heated only 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