GIA report online : 2221307773 Shape.....................Oval Cutting style ...............Modified brilliant cut Color..................... Yellowish Green changing to Brownish Yellow Species............... Natural Chrysoberyl Variety.................Natural Alexandrite Geographic origin....... Sri lanka Treatment : No indications of heating Weight : 3.69 carats Measurements : 10.41 x 8.03 x 5.85 mm 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