No.416 Jianye Road, South Jinqiao Area, Pudong, Shanghai, China.
Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory servic...
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Our products have been sold to 120 countries and areas of Southeast Asia, East Europe, South America, the Middle East and Africa etc, and more foreign markets will be promoted in future.
You can contact our head-office directly, also you can contact the oversea-offices which is near you. Of course, free live-chat is available and you can get help immediately.
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