Welcome to the School of Ocean and Earth Science, Tongji University

Tongji Gemology Education Center


Tongji Gemology Education Center was founded in 1993 by Tongji University. As a higher professional education organization in gemology, TGI owns the only National Key Teaching Team of China. TGI's mission is to ensure the public trust in gems and jewelry by upholding the highest standards of education, research and laboratory services.

As the China Metrology Accreditation(CMA) lab, TGI is authorized to issue lawful report to the public in China. TGI has a close collaboration with world's leading experts from AIGS, Gübelin, etc., to face the new challenges of gemology together.



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