Starting at 0:40 in this video, Susan focuses on December birthstones turquoise and tanzanite. Susan shows the various forms of each we carry in the store, including rough turquoise pieces, tumbled turqoise, and turquoise jewelry of all kinds. She also explains the difference between real and imitation turquoise. Another birthstone for December is tanzanite, available in rough tanzanite pieces, tumbled tanzanite and tanzanite jewelry.