White Gold Rhodium Bonded Round Cut CZ Channel Set in a Teardrop Design Drop Earrings in Silvertone. Halo Earrings are simply spectacular. They are the matching complement to the Halo Pendant. Silver tone and brilliant clear stones give these drops a very contemporary look. Did I mention these were cute? White Gold Rhodium Bond is achieved using an electroplating process that coats the item with heavy layers of rhodium, a close cousin of platinum that costs three times as much, which gives our jewelry a platinum luster.