Alexandrite is one of the most rare and cherished color-changing gemstone in the world. Highly coveted by gem aficionados, large carat, quality alexandrites are almost impossible to find. This genuine alexandrite weighs an extraordinary 4.13 carats and measures 9.93 x 8.62 x 5.84mm. This natural alexandrite changes from dark brownish green in daylight to dark brownish reddish purple in incandescent light. This untreated, very eye clean loose gemstone is oval in shape with a brilliant/step cut and was mined from limited reserves in Madagascar. Read the GIA report on this gem or examine it more carefully under different light sources in our exclusive video before adding this prestigious alexandrite to your jewel collection.