The seven-pointed star (or, alternately, septagram or heptagram) has accumulated many levels of meaning over the centuries. One of the oldest recorded meanings given to this star may be found within Kabbalistic tradition, where it represents the sphere of Venus and the power of love.
The Faery Star. ... Also known as a Fairy Star or Elven Star, it is most often used to represent the world(s) of Faery. It can be displayed as a protective shield, a focal point for meditation, or a symbol of the Shining Realms.