What a magical month to be born. The Winter Blue's have nothing on December's birthstones: Tanzanite, Zircon, Blue Topaz and Turquoise. All of December's birthstones are known for their beautiful shades of blue, giving you endless choice. Turquoise is thought to have a calming, grounding energy that makes it perfect if you are feeling overwhelmed. Topaz is thought to sooth, heal and recharge and also associated with compassion and communication.