month----stone

January----Garnet
February----Amethyst----Synthetic
March----Aquamarine or Bloodstone
April----Diamond
May----Emerald
June----Pearl, Moonstone or Alexandrite
July----Ruby
August----Peridot or Sardonyx
September----Sapphire
October----Opal or Pink Tourmaline
November----Topaz or Citrine
December----Turquoise or Zircon