Jewelry designers generally require a certain artistic foundation, no matter which direction of design is inseparable from hand-painting, hand-painting is your skills and tools to express design ideas. If you can't handle the hand-drawing of jewelry, then you can't express your design works well, so hand-drawing is very important in jewelry design.
Hand-drawing learning begins with the simplest composition. If you sign up for the class, as long as you study hard with the teacher, consult with the teacher and lay a good foundation, it will not be so difficult in the later stage, because the study of jewelry design also includes electrical diagram modeling.