This Specimen is the largest Alexsandrtite Tested in SriLanka and most probably the largest Faceted gem quality Alexandrite in the world recorded up to date . Color :day Light Incandescent light/Greenish Red ,Transparent Shape: Oval /Mixed Cut Weight :429.60ct Measurement: 49.30x34.60x28.60 mm. refractive Index:1.744-1.753 Specific Gravity:3.7 Hardness:8.5(ref data).