I am a jeweler, and a friend of mine is qualified for research, but the money is too expensive, so he took two general courses. He is a big guy. The GIC you are talking about is a course taught by a big teacher, and it is the national authority of big jewelry specialty. This is not expensive. The tuition fee is several thousand yuan (two years ago), and it takes more than one month to study. Then I will take a written test and look at the specimens. One of the benefits of studying this course is that he is a junior in FGI, and FGI is a certificate from the Royal Jewellery Institute. It takes about 10 thousand to learn. It slipped my mind. The one in England is a treasure. Is it better? I remember ~ but diamonds are better than GIA, which is the certificate of classification and division of diamonds in the United States. This certificate has not been studied in Wuhan. Generally, I have to go to Beijing and Shanghai for exams, correspondence and tuition fees add up to more than 10 thousand. There is also a national certified appraiser certificate, which is just once every two years this year, and the tuition fee plus the cost of the Beijing exam is several thousand yuan. The advantage of two foreign certificates is international certification, but the disadvantage is one gem and one diamond. In particular, GIA first said which is junior, that is, a G, and advanced, and did not ask the teacher to call home, hehe, very handsome. There is also a private gemstone appraiser co-organized by China National Treasure. Hehe, it's not much different from GIC, but a little different.
These are tuition fees, except for the content. Generally speaking, most people who take this exam have some basic knowledge. If you don't say anything, the class will be a bit boring, and you are all gossiping. If you don't understand, you can go on reciting. Hehe, I think the first point of gemmology is to understand the basic crystal optics and crystal morphology, so you won't draw ordinary gem crystals, but these basic training courses. It's a little difficult to know all the gems by textual research. Of course, you can easily access dozens of specimens in the laboratory, and learning them is better than not learning them well.
But this industry still has great potential. I wish you success!