The rolo link chain on this necklace is oxidized so that it is permanently black. It is sterling silver; oxidization is a silversmithing technique to show details and make a piece more dramatic. This 17 inch necklace closes with a strong secure lobster closure. The necklace features a templar cross with beautifully etched oxidized detailing, a black enamel on sterling Asiatic symbol of a long life and finally at the bottom a clear quartz poished circle in a sterling silver handmade frame. A stunning piece!