Largest cut alexandrite
Who
Anonymous
Where
Japan
When
The largest cut alexandrite is 141.92 carats (28.38 grams; 1 oz) and measures 34.42 x 27.38 x 15.00 mm (1.35 x 1.07 x 0.59 in). The most distinctive feature about alexandrite is its ability to change its colour. It is green by daylight and red by incandescent light.