| ASAM |
Association Strasbourgeoise des Amis de la Minéralogie |
| AFG Association Française de Gemmologie: Lyon |
Groupe de Lyon de l'Association Française de Gemmologie |
| Atelier-des-lapidaires |
Association de lapidaires et formation à la taille des gemmes |
| Com Gem |
Sessions pour découvrir la gemmologie |
| Laboratoire de Gemmologie Marseille |
Cours de gemmologie |
| ING: Institut National de Gemmologie | Les formations et diplôme |
| GemLine | La news letter |
| FEEG: Fédération for European Education in Gemmology | Formations en Europe |
| Musée et enseignement | |
| Interntional Gemmological Institute |
Cour par correspondance sur le diamant |
| Artistes des Bijoux | Cour sur la création de bijoux |
| Gem Nantes |
Recherche en gemmologie et formation SIGA, DUG, Thèse (En construction au 18.04.07) |
| GemLab | Laboratory services and gemstones sales Liechtenstein |
| LabGem | Laboratorio gemologico portugal |
| Gemstone Shoppers | Gemstone information |
| Rio Tinto Diamonds | Diamonds from Rio Tinto mines |
| The Select Diamantaire | Diamonds from Rio Tinto mines |
| Troy Diamond report | Diamond report |
| World Federation Diamond Bourses | Diamond bourses |
| AGTA: American Gem Trade Association | Gemstone information |
| GAA: Gemmological Association of Australia | The Gemmological Association of Australia |
| The Australian Gemmologist | The official journal of the Gemmological Association of Australia |
| CGA: Canadian Gemmological Association | Canadian Gemmological Association |
| GIA: Gemological Institute of America | Gemogical Institute of America |
| AIGS: Asian Iinstitute of Gemological Science | School of gemology of Asian Institute of Gemological Sciences |
| Diamond chit chat | Forums about Diamonds |
| Themelis | About gem treatments |
| Palagem | Gem news, Buyer’s Guides, Data, and much.. |
| Gem-A | Gemmological Association and Gem Testing Laboratory of Great Britain |
| Dendritics Gemscales Museum | All about the dendritics scales |
| The Gem and Mineral Exploration Company | US mineral Club list |
| Rock&Gem | Showdates by month |
| Topaz mountain rockhounding tips |
Topaz from Topaz moutain |