Moonstone is a unique and appealing gemstone that has been used in Jewelry making since ancient times. This pleasing gemstone belongs to the feldspar mineral family. Besides being colorless, it is an iridescent stone of peach, pink, green, grey, yellow, brown, and blue. The light of play seen in Moonstone Ring is called adularescence, and it varies from transparent to opaque in their transparency. The most worthy moonstones are available in Sri Lanka and India. Blue Moonstone is highly prized for its rarity. These moon magic are found only in Sri Lanka & Rainbow Moonstones are majorly produced in India. The most historically attractive moonstone mines are in the Adura mountains in Switzerland.