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