The pendant on this black and gold circle necklace measures1.1/8” x 1.1/8″. The chain is adjustable, and can be worn at 17.1/2″ or 19.0″ in length. 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.This necklace was designed in San Francisco and is handmade in our Upstate New York production studio.