The Gemmological Association is the world's longest established gemological teaching organization. Gem-A is committed to promoting the study of gemology through education and membership, and provides a wide range of courses that lead to internationally recognized gem qualifications. Gem-A gives practical workshops and courses with also scientific basis for students interested in laboratory analysis work. 

• Studies opportunities over 25 countries. 
• A wide range of books and instruments available to students, gem professionals and enthusiasts, to aid research and ensure accurate gem identification.