All stones and gems have magnetic powers. Most of them also have the power to heal. The vibrations and frequencies they emit influence human beings in a very powerful way. They create strong energy fields and some believe they have the power to bring luck and change to an individual's life. The gem stone on these pendants are finely cut and polished and then fastened to a leather thong with a pewter grommet featuring a continuous Celtic knot. Stone is 3/4 inch in diameter. Leather thong is adjustable. Made in Cornwall. Often in stock but allow 3 weeks, from Cornwall.