December's Birthstone is Turquoise

Probably one of the most recognized semiprecious gemstones is existence, Turquoise has been popular since prehistoric times. It occurs naturally in shades ranging from sky blue to grey-green.
Turquoise means "Stone of Turkey". Although Turquoise doesn't actually originate in Turkey, it earned its name because it was traded in Turkish bazaars.

Throughout history, Turquoise has been thought to protect and bring good fortune to those who wear it. The color is even used in hospitals to evoke a calming effect on patients who suffer from anxiety or depression. December could not ask for a birthstone with greater heritage and meaning.