It is said if you give your lover a moonstone necklace when the moon is full you will always have passion with each other. Moonstone is a highly valued gemstone for these reasons:
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. Moonstone is also considered a good luck stone.
Moonstone is a very personal stone. It is a reflection of the person who owns it. It does not add or detract, only shows how it is. This is why the moonstone is said to perceive that which "is". Moonstone is an excellent stone to use in meditation to understand oneself. Placing it in the moonlight of a moon reaching its fullness, not a full or waning moon, can revitalize it. This is a particularly good gemstone for women. It is a good stone for young women or teenagers.