This is a very rare genuine Alexandrite sixling crystal. It is polished over its natural crystal shape. It is a color changing variety of Chrysoberyl and changes color under different light wavelengths from green in daylight to dark red in incandescent light. This crystal has fantastic color change. Location: Fort Victoria, Zimbabwe Size: 1.9 x 1.8 x 1.4 Centimeter Weigh: 44.13 Carats