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International Gemological Institute (IGI) ShanghaiSuite 2004-2005, LJZ Plaza, 1600 Century Avenue Pudong, ShanghaiT: 86.21.3876.0730 F: 86.21.3876.0731 W: www.igiworldwide.com E: shanghai@igiworldwide.comCONTACT: Yao Yuan, managing director See Belgium, IGI Antwerp on page 42 for details.Article from the Rapaport Magazine - November 2012. To subscribe click here.