Fashion C Shape 925 Sterling Silver Stud Earrings. Your choice of 18K yellow gold plating over S925 sterling silver, or S925 sterling silver with rhodium coating . Rhodium is not corroded or tarnished by the atmosphere at room temperature, and is frequently electroplated onto jewelry, then polished to give a permanent, attractive surface. Shipped from the factory. Free shipping. Expected delivery: 12-15 days.