The birthstone associated with the month of September is sapphire. Sapphires are typically blue, but they can come in a variety of other colors as well, except for red, which is classified as ruby. This gemstone symbolizes wisdom, loyalty, and nobility, making it a popular choice for engagement rings and other significant jewelry. Historically, sapphires were believed to protect their wearers from envy and harm. Their durability and beautiful color have made them cherished throughout centuries, and they are often associated with royalty and prestige.