Birthstone - Blue Zircon or Tanzanite

December's birthstone, blue zircon, is actually one of the few colored stones with "fire" (much like a diamond has). When well cut, you can see flashes of rainbow colors when you turn it in the light. While some desire the scintillant blue zircon, fancier tastes may prefer the deep cobalt purple-blue of rare tanzanite. Tanzanite, another birthstone for December, is a very special and unique gemstone. World-wide it occurs only in one specific location: Tanzania, Africa. Make December full of warm memories with one of these blue stunners!