These beautiful earrings are named after Arianrhod , the Welsh Goddess of the moon and stars, who home is in the Aurora Borealis. She is a goddess of prophecy and dream, which is perfect for Labradorite. Labradorite is a stone of magic and protection. It awakens one's inner visions and magical connections to the universe. Labradorite harnesses the element of wind and works with all of the elements. These stunning hoop earrings are made with copper & copper plated metal, Labradorite, and hypoallergic niobium ear wires. They measure 3" x 1.5".