18k Yellow Gold Plated Sterling Silver Black Diamond and Gunmetal Color Knot Ring An intricate knot and black diamond accents lend a touch of sophistication to this ring, whose 18k gold plating provides the shine. Ring is resizable. Crafted in .925 sterling silver Black diamonds may have been treated to improve their appearance or durability and may require special care. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Imported