Each month of the year is traditionally associated with a gemstone. For those born in September your birthstone is the beautiful sapphire. This precious gemstone exists in a variety of hues, most famously in various tones of blue, as well as colourless, pink, orange, yellow, green, purple and black. The name is thought to come from the Ancient Greek word sappheiros, which probably referred lapis lazuli. Sapphires are believed to represent royalty, romance and trust.