J. Christopher
Gemological Institue of America, Japan
www.gia.eduFull Service Gemological Training & Jewelry Manufacturing Arts
Gemological Institute of America
www.gia.edu/gemtradelab/66/section_main_page.cfmGIA Gem Trade Laboratory Reports are regarded throughout the gem and jewelry industry worldwide as the hallmark of integrity, reliability, and consistency in gemological services and research. The Laboratory has literally set the industry standard for dia ...
Gemological Institute of America, Hong Kong
GIA Gem Trade Laboratory Reports are regarded throughout the gem and jewelry industry worldwide as the hallmark of integrity, reliability, and consistency in gemological services and research. The Laboratory has literally set the industry standard for dia ...
Gemological Institute of America, Italy
GIA Gem Trade Laboratory Reports are regarded throughout the gem and jewelry industry worldwide as the hallmark of integrity, reliability, and consistency in gemological services and research. The Laboratory has literally set the industry standard for dia ...
Gemological Institute of America, Japan
www.giajpn.gr.jpGIA Gem Trade Laboratory Reports are regarded throughout the gem and jewelry industry worldwide as the hallmark of integrity, reliability, and consistency in gemological services and research. The Laboratory has literally set the industry standard for dia ...
George Westinghouse Vocational and Technical HighSchoo...
www.collegenow.cuny.edu/info/high_schools/westinghouse.htmlOverwiew of semiprecious stones, setting, mountings design, casting; molding, tempering of metals, soldering, rubber mold making, wax injection, polishing, antique finishing, hand engraving, stone setting, faceting machine production
German Gemmological Training Center
More than 30.000 students from more than 75 countries attended the Diploma courses of the German Gemmological Training Centre which is sponsored by the German Gemmological Association. The training centre has attained a leading position based on the teac ...
GIA Japan - Osaka
www.gia.eduFull Service Gemological Training & Jewelry Manufacturing Arts