Thomas Sabo Charm Club Collection Sterling Silver & Cubic Zirconia Padlock Hoop Earrings This single hoop earring made from 925 Sterling silver is highly crafted. It's design resembles an authentic lock, which can be opened and closed as well. Thereby, it is so easy to put this extraordinary ear jewellery on and off. A white zirconia stone sparkles in the middle and draws all eyes to the single hoop earring. Curated ear-looks emerge thanks to combinations with further hoops, ear studs and ear cuffs trendy, which either expresses the personality or suits various edgy or glamorous styles.