20mm Jet Black Swarovski Round Crystal Rhinestone Rivoli Pierced Earrings &ndash; USA Made Made with Authentic Swarovski Elements. Nickel Free and Lead Free for Sensative Ears, Made in the USA! Perfect size for Adults and Teens, Size of each earring is the size of a nickel. We do offer a smaller size. Center Stone is Jet, Solid Dark Black, Free Gift Box Included. Please take the time to read the product description for more details!