The International Colored Gemstone Association: your complete colored gemstone information resource.
European Gemological Laboratory, EGL USA: one of the world's premier independent gemological laboratories.
Jewelers of America: jewelers association site with general jewelry information. Search for a member jeweler by name, city, or zip code.
American Gem Society: jewelers association with gemstone and jewelry information, video clips, and search function.
The Gemological Institute of America: information about education and training programs at GIA, the world's top gemology school. The site also includes information about how gemstones are graded.
The Jewelry Information Center (JIC) is a not-for-profit association founded in 1946 to provide public relations for the entire fine jewelry industry.
The Silver Institute An international association of miners, refiners, fabricators and wholesalers of silver and silver products.
Canadian Institute of Gemmology includes Gemmology World magazine, a gemological journal.
Rapaport Diamond Report: a private network with trading and price lists for subscribers only, which also has a public area with diamond and jewelry industry news.
Rockhounds Information Page: a good place to start if you are looking for lots of links on mineral collecting, geology, deposits around the world, and other people with similar interests.
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