About Diamond Certification
The diamond industry has developed an internationally recognised and standardised benchmarking system. Any given diamond certificate is approved by three examination bodies, who objectively assess the attributes of the diamond under examination. A credible certificate records the observable characteristics of a diamond, for instance the shape, weight, cut, colour, clarity, polish, symmetry, etc., to determine the grade of the purchased diamond.
Currently, the more well-known and commonly used diamond certificates include:
GIA Certiticate
The Gemological Institute of America (GIA) is a nonprofit organization involved in research and education in the fields of gemology and jewelry art. It is responsible for gem identification and the development of diamond grading services, as well as the development and maintenance of standards for assessing gem quality.
GIA Certiticate
IGI was the first accredited gemological laboratory to provide certificates for gem-quality lab-grown diamonds, while GIA only officially launched its own certificate in 2019. Furthermore, GIA's lab-grown diamond certificates are only available electronically, and their certification fees are higher than IGI's. Therefore, most (>90%) lab-grown diamonds on the market today come with an IGI certificate.