Alexandrite is natures magic gemstone, known for its colour-change under different light sources. It was first discovered in 1830 in Russia’s Ural mountains and named after Tzar Alexander II. Alexandrite is also found throughout Sri Lanka, Eastern Africa and Brazil. Alexandrite is the birthstone for June and the gemstone for the 55th wedding anniversary. Natural Alexandrite is often treated to improve its colour, clarity and durability.