The pearl is the oldest known gem, and for many centuries it was considered the most valuable. It used to believed ”Tears of Mermaids”Unlike all gems, the pearl is organic matter derived from a living creature - oysters and mollusks. There is much folklore and tradition about the pearl. Pearl, the "Stone of Truth, Faith and Love," Pearls can stimulate your femininity and help with self acceptance. They lift your spirits and make you feel calm and beautiful.