GIA Company Information
- New York City
- 10036
- New York
- United States
Profile
GIA, the world's foremost authority in gemology, is a not-for-profit organization which supports the gem and jewelry industry. Established in 1931, GIA has diamond grading laboratories and educational facilities in New York City as well as its worldwide headquarters in Carlsbad, CA. GIA also has an Instruments division which creates and manufactures jewelry equipment, such as loupes and microscopes and publishes several industry publications.