Jet-black is the darkest shade of black. The light shine (metallic luster) gives its elegance. It can be combined with any color, all of them will seem to be stronger and more vivid. Its use in interior design requires boldness even if it is only on accessories. It was named after the semi-precious stone jet, which is not a mineral but a piece of wood formed under high pressure and wet conditions. It is hard to work with it. It was mined for making mourning jewelry in the Victorian era.