Alexandrite, a gem which varies in color from red to green, was first discovered in the Ural Mountains and is named for the former czar of Russia, Alexander II, as it was supposedly discovered on the day of his birth. Although this gem has a noble history, it was the national stone of tsarist Russia, it is not as popular as the better known June birthstone, Pearl.
Some people even stretch the June birthstone further to include moonstone, another iridescent gem. Moonstones have silvery white sheens and look like the face of the moon. Moonstones are the gift for lovers. Symbolising passion, this stone was believed to bestow the power of clairvoyancy on its wearers.