European Gemological Laboratory (USA)
Encyclopedia
The European Gemological Laboratory (USA) or EGL USA is an independent gemstone
grading organization. Originally the EGL USA was a part of the European EGL which was founded in 1974. In 1986 EGL USA became independent of the European organization, and today is not affiliated with other EGL laboratories.
Gemstone
A gemstone or gem is a piece of mineral, which, in cut and polished form, is used to make jewelry or other adornments...
grading organization. Originally the EGL USA was a part of the European EGL which was founded in 1974. In 1986 EGL USA became independent of the European organization, and today is not affiliated with other EGL laboratories.