GIA report online : 2225314115 Shape......................Oval Cutting style ...............Modified Brilliant cut Color....................Violet Blue changing to Purple Species............... Natural corundum Variety.................Sapphire Geographic origin....... Sri Lanka Treatment : Heated Weight : 1.29 carats Measurements : 7.29 x 6.50 x 3.80 mm Comments : This stone change color under daylight. 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