Each month of the year is traditionally associated with a gemstone. For those born in February your birthstone is amethyst. This semi-precious gemstone is known for its purple colour with hues ranging from deep violet, red-violet, and light lilac. The word 'amethyst' is derived from the Ancient Greek word amethystos meaning 'not drunk', as amethysts were once worn as an amulet against drunkenness. Leonardo Da Vinci once wrote that amethyst quickens intelligence and gets rid of evil thoughts.