This black and white line and diamond sterling square band is available in sizes 5.0 – 9.5 (including half sizes). This ring features a blackened (oxidized) sunken line, and comes with a flush set 1.0mm diamond. Materials: Sterling silver (.925), oxidized sterling silver, and one lab created diamond. All materials are hypoallergenic. The black (oxidized) components of our jewelry will wear over time and eventually achieve a beautiful antique-like finish. This ring is designed in San Francisco and handmade in our Upstate New York production studio.