September’s birthstone is the sapphire. While blue sapphires are the best-known variety, sapphires can also come in shades of yellow, green, pink, purple, and orange. Pinkish-orange stones are known as padparadscha sapphires, while dark pink or red stones are considered to be a different gemstone entirely: the ruby. Colorless sapphires can also be used in jewelry as a substitute for diamonds. The value of blue sapphires is determined in part by secondary hues in the color of the stone; shades of violet are considered ideal, while greenish-blue stones are generally considered less desirable.

Check out the gorgeous pink sapphire briolettes in our gemstone case, or for an alternative to the violet blue hues of traditional sapphires, take a look at some of our other semiprecious strands, such as aquamarine, blue lace agate, or lapis lazuli.

Sources:

http://en.wikipedia.org/wiki/Sapphire

http://www.about-birthstones.com/septemberbirthstone.html