AGS - The American Gem Society (AGS) has been protecting the consumer.
Carigem International - Providing fine products, following FTC guidelines, and consumer information.
Diamond High Council - Supply a wide variety of publications with information related to the diamond trade and industry.
Federation for European - A consortium of gemmological institutes formed to establish a standard of European.
Gemmological Association - A non-profit making organization whose principal objectives are the scientific study of gem materials.
Gemological Institute of America Inc. - A nonprofit educational resource for the gem and jewelry industry.
Gemstone - ICA - International Colored Gemstone Association.
German Gemmological Association - Training and research in modern gemmology. Programs and fees, diamond grading, and enrollment.
Gold Virtuosi - International jewellery design awards from the World Gold Council.
GoldCoast Jewellers - GoldCoast Jewellers offer affordable quality jewellery in the Brighton Lanes, Brighton, East Sussex.
Hong Kong Jewelry - Mission is to increase the productivity of jewelry manufacturing in Hong Kong and to strengthen.
Jewelers of America - Jewelers of America is the national jeweler's trade organization. They also provide jewelry and diamond information to consumers.
Jewelers Vigilance - Not-for-profit trade association whose mission is to maintain the jewelry industry's.
Jewellers Association - Established to represent and protect the interests of the jewellery industry and jewellery consumers.
Jewellery Distributors' - A non-profit-making trade body, within the British Jewellery and Giftware Federation.
Jewelry Design - Aim is to provide an open, accessible and supportive channel for designers to share ideas.
Society for Midwest - A non-profit organization formed to promote, develop, educate, and encourage.
Society of American Silversmiths - Resource relating to the silversmiths' art and craft.
The Diamond High Council - 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 - The Gemmological Association of Australia (GAA) is Australia's historic trade-accepted non-profit educational authority for gemmology.
The Jewelry Information - A non-profit trade association funded by its members and the public.
The Silver Institute - An international association of miners, refiners, fabricators and wholesalers of silver and silver products.
United States Faceters Guild - Focuses on the art and skill of faceting gemstones.