Despite the many political and economic catastrophes of the twentieth century, the gemstone industry, with its center has reached a position in the world, which is internationally known as the world's largest trade journal Jeweler's Circular Keystone. For example, if the advertisements pages of the Lapidary Journal, one of the few specialized gemstones specialized in gemstones, are shown, there are always advertisements in which precious stones with "Idar-Oberstein cut" are offered or where it is called "finest cutting by German Craftsmen "and" recut. Does it still need a self-presentation at all? Is not it enough to promote your own high-class products? The international gemstone dealers know the gemstone industry and its possibilities. Many members of the jewelry industry depend on what they can read in publications. The portrayals of young and youngest centers of the precious stones, which are sometimes very euphoric and their own significance from an unusual point of view, may, therefore, make it helpful for the opinion formation to hear something of a century-old center.