Many people believe that wearing a gemstone associated with your birth month or Zodiac sign brings good luck and can be a charm that carries protective powers. Astrological Gemstones are based on the twelve signs of the Zodiac; where each sign is related to the placement of stars in the sky and the sun during the time of birth.

Modern birthstones are related to the twelve months of the year as derived from the Gregorian calendar. Ultimately, the choice of astrological or modern birthstone is a matter of personal taste, belief and experience.