Garnet is the birthstone for January. Garnet is the name of a group of minerals that comes in a rainbow of colors, from the deep red of the pyrope garnet to the vibrant green of tsavorites. Derived from the word granatum meaning seed, Garnet signifies eternal friendship and trust and is the perfect gift for a friend. References to the gemstone dates back to 3100 B.C., when the Egyptians used garnets as inlays jewelry. The most important sources of Garnet are Africa, Sri Lanka, and India.