The appraisal courses of IGI include: refined diamond appraiser course, rough stone appraiser course, colored gems appraiser course, pearl appraiser course, jewelry design course and iPad design course. It also provides enterprise courses for many well-known jewelry companies, which are introduced in detail in official website. IGI is an evaluation laboratory headquartered in Belgium. In fact, it provides education and training in assessment courses all over the world. I passed IGI's diamond intensive examination during 20 16 University.