Manual designing: designing with different motives and knowledge of jewellery. shading, rendering of white gold, yellow gold, gemstones etc. costume jewellery: making all jewellery by different types of beads, stones. metallurgy- basic knowledge and theory of all terms used in jewellery.
Manual design gemology: basic study of gemstones, shapes; origin, occurence etc. diamond grading: basic knowledge of diamond . there 4cs of grading