GANZ recommends the British Gem A gemmological Diploma
We are an allied training centre for Gem A (the Gemmological Association of Great Britain). Gem A Diploma (FGA) is available as a correspondence course in 2 parts (with Great Britain). Year one is their Foundation in Gemmology Certificate. You must pass this to go on to year two, which is the full Gemmological Diploma. GANZ will provide the practical tuition you need (in Auckland) to complete the course for each year. You can start the course at any time, exams are held in January and July each year.