Our moonstone star necklace is a minimal choker made with a hand carved natural moonstone gemstone wrapped onto on our dainty 14K gold filled or sterling silver cable chain. Perfect for gift giving for those that love celestial jewelry or for a June birthstone gift. Moonstones have flashes of blue color and are 10mm in size. About Moonstone: Moonstone is a natural untreated gemstone in the feldspar group of minerals well known for its blue flashes of color when turned in the light. This effect is called adularescence. Moonstone has a unique crystal structure that creates this optical phenomena by alternating layers of albite inclusions and orthoclase. As the light enters the stone and bounces back it creates the blue flash. Moonstone can be found in many places around the world, with the most popular deposits in India and Sri Lanka. Materials: Moonstone gemstone hand carved star 10mm All metal components are 14K gold filled, 925 sterling silver, or 14K rose gold filled If you have any questions just click "message seller" on our homepage. Thank you for visiting our jewelry shop, Linda and Joe .