City:New York
AGTA Gemological Testing Center
www.agta.orgThe American Gem Trade Association Gemological Testing Center (AGTA GTC) is the natural colored gemstone industry's premier independent laboratory. The AGTA GTC serves the industry and the public with a complete range of colored gemstone and ...
International Gemmological Institute (IGI) New York
www.igiworldwide.comEducational programs: Polished and rough diamond courses, colored stone courses, diamond correspondence courses.
EGL USA - New York
www.eglusa.comEGL USA is one of the world's premier independent gemological laboratories. For over 25 years it has offered the fine jewelry trade and consumers accurate, reliable gemstone identification and professional certification to validate their gemstone pu ...
American Gemological Laboratories (AGL)
The American Gemological Laboratories is an independent organization which grades colored stones and diamonds.
Fashion Institute of Technology
www.fitnyc.suny.eduFull Service School. Design. Manufacture and Gemology
Jewelers of America
www.ja.polygon.netJA certification gives jewelry professionals identifiable status within the trade, enabling them to easily communicate their level of skill to both colleagues and customers. By promoting and evaluating nationally recognized standards for bench jewelers, s ...