This black with gold or silver line necklace measures 21.3/4″ in length and comes in three color-ways and metal combinations. Materials: 14k gold or rose gold-fill (14k gold over brass core/no nickel), or 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. This necklace was designed in San Francisco and is handmade in our Upstate New York production studio.