The Alexandrite is a birthstone for the month of February. One of the most prized and exotic gemstones is the variety of chrysoberyl known as an Alexandrite. Alexandrite is an extraordinary gemstone that appears green or red dependent on the light it is observed under. This colour change effect is sometimes referred to as the ‘alexandrite effect’. The rarity of this material and its chameleon-like qualities make alexandrite one of the world’s most desirable gemstones