Alexandrites, despite their relatively unknown status, are precious stones, that sits alongside the top gemstones in the world, and it is also one of the rarest precious stones. Alexandrite is a chrysoberyl, a variant of beryllium and usually contains chromium. Alexandrite is found in a number of hues, though their true colour is often difficult to determine, going from vivid greens to shades of deep glowing red. They are valued for the distinct ways in which they interact with light, with the colour of the gemstone changing depending on the colour of the light source. Alexandrites are valued for their rarity, and the gem quality of high carat can command very high prices. Alexandrites are found in the top gemstone exporting nations like Brazil, Ceylon and the nations in East Africa. Alexandrite is the birthstone for the month of June. For use in fine jewellery, Alexandrites are valuable additions that not everyone can manage.