Blue sapphire is a precious gemstone known for its striking blue color, which can range from light to deep shades. It is a variety of the mineral corundum, and its vibrant hue is primarily due to the presence of iron and titanium. Blue sapphires are highly valued in jewelry and are often used in rings, necklaces, and earrings. This gemstone has a long history, symbolizing wisdom, loyalty, and nobility. Sapphires are found in various locations around the world, including Sri Lanka, Myanmar, and Australia. They are also the birthstone for September, making them a popular choice for birthday gifts.