Reach for the moon and land among the stars with our Rainbow Moonstone Moon Charm . C rafted from 18k gold, the charm showcases a gorgeous cabochon center stone. Look closely and you'll notice that the diamond half halo is actually a crescent moon. Rainbow moonstone is all about intuition, feminine energy, and emotional balance. It's often associated with: new beginnings, inner clarity, and protection. A dding to the unique beauty of these pieces, no two natural stones are alike.