GIA online report : 6335372729 Shape,........................,... Oval Cutting style....................... brilliant cut Color.................... yellowish green changing to brownish yellow Species........................ Natural chrysoberyl Variety............................. Natural Alexandrite Geographic origin.............. Madagascar Treatment: No indication of treatment Weight : 8.35 carats Measurements : 13.14x10.20x7.69 mm Comments : None Top luster Natural clean Alexandrite 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