January: Garnet
February: Amethyst
March: Aquamarine
April: Diamond
May: Emerald
June: Pearl + Alexandrite
July: Ruby
August: Peridot
September: Sapphire
October: Opal + Tourmaline
November: Topaz + Citrine
December: Turquoise, Tanzanite, Blue Zircon (coming soon)
