GIA
Diamond grading, gem identification, research and education.
OFFICIAL WEBSITE →
GEMMOLOGICAL REFERENCES
These institutions inform the independent educational material presented in the J’aime Gem Library.
Diamond grading, gem identification, research and education.
OFFICIAL WEBSITE →Coloured gemstone colour terminology, origin and treatment research.
OFFICIAL WEBSITE →Scientific testing of high-value coloured stones and pearls.
OFFICIAL WEBSITE →Research and origin determination for coloured gemstones.
OFFICIAL WEBSITE →Diamond and jewellery reports, including laboratory-grown diamonds.
OFFICIAL WEBSITE →Chinese gem and jewellery testing, research and standards.
OFFICIAL WEBSITE →International nomenclature and trade standards.
OFFICIAL WEBSITE →