Teacher Mo Tai, chief engineer of jewelry and jade, geologist, expert in jewelry appraisal and evaluation, director of Yunnan Gemstone Professional Committee and leader of expert group, has a jewelry purchase record of more than 6 million yuan. Teacher Mo's evaluation and judgment on jade and jadeite has become the foundation of Chinese and foreign jewelry markets.

Teacher Xiao Yongfu-director of China Gemstone Society, honorary vice president of Yunnan Jewellery Association, director of Yunnan Gemstone Professional Committee, member of Gemstone Appraisal Committee and senior appraiser of JAC jewelry.

Professor Zeng Xianfang, a professor of geology at Kunming University of Science and Technology, has been engaged in teaching jewelry and jade theory for many years, with rich practical experience and profound professional attainments. He is a senior consultant of many large jewelry enterprises in Yunnan.