These black & gold circle earrings measure 1/2″ long by 1/2″ at their widest point. Materials: 14k gold or rose gold-fill (14k gold over brass core/no nickel) and oxidized sterling silver (.925). All materials are hypoallergenic. The black (oxidized) components of our jewelry will wear over time and eventually achieve a beautiful antique-like finish. These earrings were designed in San Francisco and are handmade in our Upstate New York production studio.