Gemological Institute of America (GIA) is the world’s most trusted name in diamond grading and gem identification. With objectivity and expertise as its hallmarks, GIA ensures the integrity and accuracy of every report it issues. GIA tests every material submitted to determine whether it is natural or not, and discloses any treatments discovered during their examination.

A report from GIA is an expert statement of a gem’s identity and quality characteristics. A GIA report is your assurance of your gemstone’s quality, with clear disclosure if the material is laboratory-grown or if it has been treated to enhance or alter its appearance. The report provides the kind of evidence that is vital to a confident gem or jewellery purchase.