The Moonstone is associated with the moon and was the stone of the goddess Diana. The most powerful time to use the moonstone is in a full moon. It has been worn as an amulet to bring good emotions to the wearer, while protecting those of a sensitive nature. It can reunite lovers who have quarreled. It is a very personal stone, which will be a reflection of the person who owns it. It does not add or detract, only shows how it is. Moonstone is an excellent stone to use in meditation to understand oneself.