Iolite (or cordierite). A stone which symbolizes fair judgment and long life. The name iolite comes from ios, the Greek word for violet. Iolite is commonly known as "water sapphire" in its deep blue sapphire color.

Like sapphire and tanzanite, precious iolite is pleochroic - meaning it transmits light differently when viewed from different directions. Legends say that wearing iolite is as a way to strengthen one's eyesight.