Systematic content including the history, origin, treatment, quality evaluation and market analysis of ruby, emerald, sapphire and spinel. Discount: You can get a discount if you sign up for four courses at once

An introductory summary course tailored for consumers, colored gemstone buyers and gemstone lovers, covering the full range of spinel expertise.

As one of the five precious gemstones, sapphire has received increasing attention in recent years, and its value and status have been continuously recognized by customers. However, due to the scarcity of resources, there are fewer and fewer top quality sapphires. Understanding the cultural background behind the gemstones and digging out the stories behind the gemstones is essential to enhance the cultural value of the gems.

As an important member of the five precious gemstones, ruby has received increasing attention in recent years, and its value and status have been continuously recognized by consumers. However, due to the scarcity of resources, precious rubies are becoming fewer and fewer. To understand the cultural background behind the gems and to dig out the stories behind the gems is essential to enhance the cultural value of the gems.

Emerald has been popular for a long time as one of the five precious gemstones. It has not been in the Chinese market for a long time, but it has developed rapidly, and it has been loved by more and more jewelry lovers. When consumers buy emeralds, they need to get sufficient knowledge about gems to avoid stepping on pits. Practitioners also need to have a basic understanding of the characteristics of gems and the market when they are selling emeralds. This course takes you to learn about emerald step by step and understand the value behind emeralds.

Colored gemstones are the general term for all gemstones with color in the gem family. Colored gemstones have the most gorgeous and beautiful colors described by nature, and people can't help but fall in love with them. In recent years, China's colored gemstone market has entered a period of rapid growth and development. A systematic understanding of the identification and grading evaluation of colored gemstones is more conducive to judging the value of gemstones and grasping the development trend of colored gemstones.