Gems identifier and the member of experts panel of PKUGAC, Majored in mineralogy, graduated from China University of Geosciences(Beijing), science doctor degree, organized by GAC、CGC、DGA、FGA, gems identification engineer awarded by Ministry of Foreign Trade and Economic Cooperation, ever engaged to be a price verification staff about property case involved in lawsuit by National Development and Reform Commission; also engaged in teaching gemology , diamond and other training job.