A school or employer may ask for a sealed copy of your diploma from time to time. This means that the diploma will be enclosed in a sealed envelope, which will be stamped or marked with your school's stamp or seal.   - If you must send a sealed diploma, make sure to specify this when ordering your copy. Although there may be a small additional fee for sealing the diploma, this is usually not an issue for your institution to do.   - If you need to send a sealed copy, don't open the envelope in which you received the diploma before sending it. - If you do, the diploma will no longer be deemed sealed and may no longer meet the company's or institution's standards.