Upstairs is a brand under Shanghai Dengmei Jewelry Co., Ltd., which is a brand new jewelry sales model. The so-called "upstairs" means opening a jewelry store into a high-end office building, allowing customers to shop in the office building upstairs. A brand new marketing model that opens jewelry stores into high-end office buildings not only saves the high cost of store rentals for traditional jewelry stores, but also saves the high counter fees and shopping mall deductions for entering the mall. point.