T.G.L Japan is a member of the Association of Gemological Laboratories (A.G.L) in Japan. It operates under the
strict rules of AGL Japan and represents the highest standards of Japanese gemological grading.Trust and Accountability
to quality and service combined with value for tradition are the prime standards of TGL.
With 5 branches located in 3 different important positions, T.G.L. is aimed at serving the important Japanese and East
Asian demand for guaranteed certificates, and offers a strategic relationship with partners in Far East locations and
worldwide.
T.G.L branches:
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