The advantage of diversification of jewelry products is to bring more choices and promotion to customers. According to relevant public information, jewelry can be divided into natural gemstones, natural jade, natural colored gems, natural organic gemstones and artificial products. Natural gems: diamond, fluorite, ruby, sapphire, hematite, crystal, spinel, golden green cat's eye, yellow-green cat's eye, topaz, emerald, tourmaline, herbert, opal, amethyst gold ore, Yingshi, etc. 17 species.