Halo sterling silver and rainbow moonstone y necklace This halo necklace has rainbow moonstone. The rainbow moonstones are round. The four round rainbow moonstones are in the center of sterling silver circles or halos. The halos are linked in a Y shape. The necklace chain and clasp are sterling silver. The rainbow moonstones are set in sterling silver. This halo necklace is 16" long. The halos are 1/2" in diameter and the halo drop is 1-1/2" long. Moonstone is a feldspar gemstone with a blue or white sheen. Moonstone is a birthstone for month of June and the zodiac sign of Cancer. Moonstone is said to bring good dreams to the wearer and has healing powers.