The Shining Privileged insights of December: A Manual for Shocking Birthstones Similarly, an American actor, Jeffrey Leon Bridges is another name on the list who was born on 4 December 1949. According to him, the reason behind his positive attitude and success is none other than a bluish treasure - Turquoise birthstone. Not only these two famous personalities but lots of gems appreciators are there who understand and celebrate the Mystical Charm of December Birthstones in their lives.