January: Garnet or Rose Quartz

February: Amethyst or Onyx

March: Aquamarine or Bloodstone

April: Diamond or Quartz

May: Emerald or Chrysoprase

June: Pearl, Moonstone or Alexandrite

July: Ruby or Carnelian

August: Peridot

September: Sapphire or Lapis

October: Opal or Tourmaline

November: Topaz or Citrine

December: Turquoise, Tanzanite or Zircon