Only AIGS Asia Gemological Institute has it. One of the top ten famous gem testing laboratories in the world, founded by WaingKongHo on 1978, is the first international professional gemological education and testing institution in Southeast Asia. AIGS Asia Gemological Institute (China Branch) officially settled in Shanghai, China on June 12, 2020, specializing in jewelry appraisal. Founded in Bangkok 1978, the school is the first international professional gemmology education institution and jewelry testing laboratory in Southeast Asia, the first overseas brand jewelry testing laboratory with foreign capital settled in China, and one of the top ten famous gem testing laboratories in the world.