Shop Moonstone tumbles, palm stones, bracelets, rings, earrings and necklaces in white, peach, grey and rainbow-flashing varieties. Moonstone is a feldspar gemstone known for adularescence, a soft glow that seems to move beneath the surface. Traditionally associated with intuition, cycles and new beginnings, it is also a June birthstone. Flash, clarity and natural inclusions vary between pieces, making each one individual.