Fondly known as an ‘Emerald by Day and a Ruby by Night’, Alexandrite is a type of Chrysoberyl that is rare yet abundantly found in Sri Lanka. Their ability to shift colors from red to green when viewed under different light sources makes Alexandrite a highly sought-after gemstone in the global market. A strongly pleochroic gem, which displays different colors when viewed from different directions, the three pleochroic colors of Alexandrite are green, orange, and purple-red. However, the gem's color change doesn’t arise from the gem’s pleochroism, but from the mineral’s unusual light-absorbing properties. Although most Alexandrite's found in Sri Lanka can be faceted, there is an occasional occurrence of color-changing alexandrite cat’s eye.