A sapphire's pure blue colors and excellent durability make it an exceptional gemstone. However, not all sapphires are blue. The September birthstone comes in many colors. Sapphires are considered a protective gemstone. They may shield the wearer from physical harm as well as bad intentions and envy. It was also thought that sapphires had medicinal properties. Blue sapphires are considered a highly spiritual stone worn by priests.
(International Gem Society)
