Genuine Rhodium Plated Stud Earrings with Round Cut Purple Cubic Zirconia and Post Backing Polished into a Lustrous Silvertone Finish. These earrings exude elegance. Check out the matching pendant too! Our genuine rhodium finish is achieved using an electroplating process that coats the item with heavy layers of rhodium, a close cousin to platinum, which gives our jewelry a platinum luster.