①Interpret the history, culture, and symbolic meanings of various common gems in close combination with their gemological properties. Master the core sales language to assist salespeople in telling better stories, endowing gems with cultural value and creating greater profit margins. ②Describe the basic gemological properties, enhancement treatments, colors, cuts, quality assessment factors, etc. of the eight major categories of gems. Explain them in detail by category to systematically establish a complete gem knowledge framework and help trainees master grading and identification skills.

①The single-category corundum family course teaching comprehensively analyzes the corundum family, focuses on the enhancement treatment section of ruby and sapphire, and provides an in-depth understanding of the heated and unheated states of ruby and sapphire. ②Centering on the core factors of the value of ruby and sapphire, it addresses the risks of synthetic products in the ruby and sapphire market transactions and the identification and avoidance of various traditional and new enhancement treatment products. ③It offers an in-depth interpretation from the mining area to the market, combines the cutting-edge market information from the laboratory, gets closer to the market and enables practical application.

①The course has constructed a systematic emerald knowledge system, including origin identification, characteristics of optimization treatment, etc. By connecting with the laboratory and analyzing the special samples received by the laboratory in the past, students can experience the quality situation of emeralds in the market. It helps students learn and remember the obvious characteristics of synthetic optimization treatment, which is convenient for practical application in the future. ②It will focus on the value and trading market of emeralds and interpret all aspects of emeralds internationally. Through the accumulation of big data and tracking the auction market situation over the years, the future market trend can be judged. ③At the same time, GUILD will share the experience of emerald mining areas during field study trips, share mining area documentaries, tell the stories of local mine owners, and lead everyone to approach the emerald mining areas and get closer to the procurement source.

A gem science course specially designed for primary and secondary school students, opening up the growth path of gem learning through practice.

There are a vast number of teaching specimens, covering genuine and fake jadeite, enhanced-treated jadeite and jadeite from the origin of Guatemala.

Pearls are known as the "Queen of Gems". As a gem that comes into close contact with the skin, they are generally worn in a string. Pearls are also one of the most charming gems, and their beautiful nacre forms an enchanting pearly luster. Pearls are a highly versatile gem because their neutral color can match with almost everything, and of course, you can also choose more challenging iridescent colors. Pearl strands are almost a must - have jewelry for all women. But what should you pay attention to when buying and selling pearls? What's the difference between professionals who make a profit and others? Knowledge is the key. How to grade and evaluate pearls, how the market and supply chain operate, and how to win the trust of customers are all crucial knowledge points.