The seven-pointed star is called a "heptagram." In Neopaganism, it is often called the Elven or Fairy star; the seven points represent air, fire, water, earth, above, below, and center. In Christianity, the heptagram represents the seven days of creation.
The height of the front face is about 5/8" (17 mm). I also offer a Fairy Star Ring in a
more dramatic version.
If you do not see your ring size listed, send me a note via the "SEND MESSAGE" button below. I'll add your size to the list, usually within a day.