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AGS
The American Gem Society (AGS) has been protecting the consumer.
http://www.ags.org/
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Carigem International
Providing fine products, following FTC guidelines, and consumer information.
http://www.carigem.org/
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Diamond High Council
Supply a wide variety of publications with information related to the diamond trade and industry.
http://www.diamonds.be/
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Gemmological Association
A non-profit making organization whose principal objectives are the scientific study of gem materials.
http://www.gagtl.ac.uk/
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Gemstone
ICA - International Colored Gemstone Association.
http://www.gemstone.org/
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German Gemmological Association
Training and research in modern gemmology. Programs and fees, diamond grading, and enrollment.
http://www.dgemg.com/
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Gold Virtuosi
International jewellery design awards from the World Gold Council.
http://www.gold-virtuosi.com/
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GoldCoast Jewellers
GoldCoast Jewellers offer affordable quality jewellery in the Brighton Lanes, Brighton, East Sussex.
http://www.goldcoastjewellers.co.uk/
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Hong Kong Jewelry
Mission is to increase the productivity of jewelry manufacturing in Hong Kong and to strengthen.
http://www.jewelry.org.hk/
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Jewelry Design
Aim is to provide an open, accessible and supportive channel for designers to share ideas.
http://www.jdpn.org/
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