These beautiful Colleen Mauer tri-toned triad earrings measure 1.3/4″ long by 1.0″ at their widest point. Materials: 14k gold or rose gold-fill (14k gold over brass core/no nickel) sterling silver (.925) and oxidized sterling silver. 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 are designed in San Francisco and handmade in our Upstate New York production studio.