DIPLOMA IN DIAMOND MANUFACTURING PROFESSIONAL program inspects the specialized mastery expected to review, purchase, and sell precious stones with the knowledge of a prepared proficient. This certificate program investigates the GIA jewel reviewing techniques to evaluate the 4Cs – shading, lucidity, cut and carat weight and how they influence precious stone worth. Understudies utilize proficient precious stone evaluating hardware for the reasons for analyzing a jewel's quality attributes to r