Profile
Founded in 1977, The World Gemological Institute (WGI) is a 
leading nonprofit gemological research center and diamond 
grading laboratory. For over 30 years the World Gemological
Institute has contributed to the global diamond industry by 
contributing knowledge and expertise to all stages of a diamond's 
voyage including rough sorting and analysis, diamond cutting and 
re-cutting, and most importantly, the professional grading of the 
finished polished diamond. During these stages, the World 
Gemological Institute helps manufacturers, retailers and 
consumers better know their diamonds so that each diamond can 
fulfill its final purpose: enriching the life of its wearer. 
 
 
Service has always been a key priority at the World Gemological Institute's diamond grading laboratory.
This includes service to the consumer and the diamond industry by communicating a  diamond’s 
through accurate, reliable and comprehensive diamond grading reports; service to diamond manufacturers
and diamantaires by providing automated account management of diamond grading results; and also
service to the world of gemology, by conducting ground-breaking research together with leading  academic
institutions to increase diamond knowledge for jewelry lovers, gemologists, and the global jewelry industry.
 
Click here to learn more about our Services and Diamond Grading Reports.
 
 
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