Sapphire is a birthstone of September. In the Middle Ages the gem was believed to protect those close to you from harm and also represented loyalty and trust. Sapphire is said to help focus the mind, encourage self-discipline and channel higher powers
Sapphires are hard stones – measuring 9 on the Mohs scale – perfect for jewelry. Blue is the most popular color and the color (and depth of color) is the most important element in estimating the value of a sapphire. Trace elements like iron, titanium, chromium, copper and magnesium give sapphires a tint of blue, yellow, purple, orange or green.
There are other choices to sapphire as a September birthstone. Traditional alternatives are moonstone, agate, sardonyx, chrysolite, and zircon. There are also 12 different stones listed for the zodiac signs of Virgo and Libra which may also be considered as alternative September birthstones. Here are some of them: carnelian, jade, jasper, lapis, and citrine.