Mokume Gens begins at 17th century of Japanese history, it is the sign of High-class people, these people use it on High-end decoration (japanese swors). Normally, it will use gold, sliver or copper to produce Mokume Genem but the success rate is low, and the material is expensive, which cause (red copper & stainless steel), and use this material in female accessories, it make a simple accessories become incredibly special, even its a same design, but the metal pattern will never be the same.