Zhou Zhengyu

Dr. Zhou Zhengyu (征宇 周 – Adam) is Director of the Gemology Education Center of Shanghai’s Tongji University and is a world authority on Chinese nephrite. He has been engaged in teaching and scientific research of gemology since 2006. The author of three books and over 30 articles on all aspects of gems and gemology, he is also one of the editors-in-chief of China’s National Gemological Planning Textbooks for higher education.