Just fill in the postgraduate degree. Diplomas represent academic qualifications. With a graduate diploma, your education will become a graduate student. No matter whether you are on the job or not, as long as you have a double certificate, you are called a full-time graduate student. There are no in-service graduate students. Graduation certificates and master's certificates do not write words on the job. If there is only a master's certificate without a diploma, and the degree is still the original undergraduate course, such a graduate student is not allowed to apply for a post that requires a postgraduate degree.