In July 2007, Hong Kong-Zhuhai International Enterprise Management Co., Ltd. (JBM Group for short) initiated the concept of "Diamond and Jewelry Express Line" and became one of the most famous diamond and gold jewelry wholesalers in China with the most complete styles, the most stocked goods, the best price and the most convenient after-sales service. At present, JBM Group has reached supply cooperation with more than 3,000 jewelry dealers nationwide, and it is a veritable one-stop wholesale giant in the domestic diamond and gold wholesale market. At that time, the leaders of JBM were far-sighted and realized the huge development potential of domestic e-commerce, so they extended the concept of "diamond through train" to the jewelry e-commerce retail industry and adjusted it to "diamond through train", and at the same time infiltrated the core concept of "diamond through train": spot, fast, novel, convenient and economical. Since then, the "Diamond Express" came into being.