IGI report online : 675570443 Shape......................Octagon Cutting style ............... Emerald Cut Color....................Yellow Green changing to Brownish red Species............... Natural Chrysoberyl Variety.................Natural Alexandrite Geographic origin....... Sri Lanka Treatment : No indication of heating Weight : 1.12 carats Measurements : 6.52 x4.81 x 3.92 mm Comments : None The stone was selected by Tal Naaman ,Gem Hunter and sent to the IGI 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