The American Gem Society (AGS) has been protecting the consumer.

Providing fine products, following FTC guidelines, and consumer information.

Supply a wide variety of publications with information related to the diamond trade and industry.

A consortium of gemmological institutes formed to establish a standard of European.

A non-profit making organization whose principal objectives are the scientific study of gem materials.

ICA - International Colored Gemstone Association.

Training and research in modern gemmology. Programs and fees, diamond grading, and enrollment.

International jewellery design awards from the World Gold Council.

GoldCoast Jewellers offer affordable quality jewellery in the Brighton Lanes, Brighton, East Sussex.

Mission is to increase the productivity of jewelry manufacturing in Hong Kong and to strengthen.

Jewelers of America is the national jeweler's trade organization. They also provide jewelry and diamond information to consumers.

Not-for-profit trade association whose mission is to maintain the jewelry industry's.

A non-profit-making trade body, within the British Jewellery and Giftware Federation.

Aim is to provide an open, accessible and supportive channel for designers to share ideas.

A non-profit organization formed to promote, develop, educate, and encourage.

Resource relating to the silversmiths' art and craft.

The Diamond High Council (HRD) is the professional organization to defend and promote the interests of the Antwerp diamond trade and industry.

The Gemmological Association of Australia (GAA) is Australia’s historic trade-accepted non-profit educational authority for gemmology.

A non-profit trade association funded by its members and the public.

An international association of miners, refiners, fabricators and wholesalers of silver and silver products.