Absolutely your degree will work for you. As you mentioned that you have already done a diploma course, it means that you have enough knowledge, and because of this knowledge you are part of an organization. Even during the job, you must have learned a lot of new things and it will also be useful for you. When we have a diploma or degree, naturally, the importance of a degree is found more than a diploma, so when you complete your degree, it will be given importance by your institution. Along with theoretical knowledge, practical knowledge is also very important at present and when you complete your studies with a job, that too in the same stream then you are also given priority. Still, if you have doubt that the organization will consider it or not then you can apply others.