If you enter the processing factory after finishing your studies, then because the model of the factory is an assembly line, your post may only be able to do one or two fixed links and fixed things.

Whether you can develop in the direction of jewelry design depends on your own study, personality and opportunities.

It's best to study first, and then go to a private processing shop for an internship for a while, because all you learn is theory and fur. I feel that I have the skills to open my own shop.