A non-profit making organization whose principal objectives are the scientific study of gem materials, education, and libraries of gem materials. Courses, laboratory services, and contact information.

Resource relating to the silversmiths' art and craft. Artisan gallery, silver care, workshops, and library.

Trade organization for retail jewelers. Consumer information, membership, and affiliates.

Not-for-profit trade association whose mission is to maintain the jewelry industry's highest ethical standards. Trade and consumer resources.

International jewellery design awards from the World Gold Council. Finalists, winners, and contact information.

A non-profit-making trade body, within the British Jewellery and Giftware Federation. Members benefits, news, and index of products.

Focuses on the art and skill of faceting gemstones. Tips and techniques, online discussion, and diagrams.

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

A consortium of gemmological institutes formed to establish a standard of European certification, which members must adhere to. List of the member institutes and their offered courses.

Mission is to increase the productivity of jewelry manufacturing in Hong Kong and to strengthen the ability to compete with overseas manufacturers. Technical articles, services, and member list.