The jewelry clerk examination is divided into three levels, which are primary (national vocational qualification level 5), intermediate (national vocational qualification level 4) and advanced (national vocational qualification level 3). Senior experts from Pearl Harbor School teach and train the personnel engaged in jewelry and handicraft sales, so that they can master the basic knowledge and skills of jewelry business reception, sales, commodity management, laws and regulations, and can independently engage in jewelry business and sales services under the guidance of professional lecturers and training experts.