The September birthstone is Sapphire, a blue gemstone that is known for its beauty, rarity, & strength. Sapphires have been prized for centuries for their deep, vibrant color & their association with royalty, nobility, and wisdom.Sapphires come in a variety of colors, including blue, pink, yellow, green, orange, purple, & white.The most common type, Blue sapphires, are said to represent truth, loyalty, and wisdom. They are also believed to bring good luck & protection!In addition to its beauty & symbolism, Sapphire is also a very durable gemstone. It is rated 9 on the Mohs scale of hardness, making it one of the hardest natural substances. This makes sapphire a good choice for everyday jewelry that will stand up to wear & tear.