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Wim Vertriest

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Wim Vertriest is the manager of field gemology at GIA Bangkok. In his role, he oversees the field gemology department and curates GIA’s colored stone research collection.

East Africa – Mining and Rough Supply

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InColor magazine is the ICA's quarterly publication, all about colored gemstones. A must read for anyone in the gemstone and jewelry industry, as well as the gem enthusiast. InColor reports on information relating to the gemstone trade, mining, gemology, education, trends, fashion as well as ICA member related issues.
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