Lab-grown diamonds, like their natural counterparts, can receive certification from reputable gemological laboratories. The certification process involves a comprehensive examination and grading of the lab-grown diamond's quality and characteristics. Among the most widely recognised and respected gemological laboratories that provide certification for lab-grown diamonds are the Gemological Institute of America (GIA), the International Gemological Institute (IGI), the American Gemological Society (AGS), and the European Gemological Laboratory (EGL).
GIA, known for its global reputation, issues grading reports for both natural and lab-grown diamonds. These reports provide detailed information on the diamond's cut, colour, clarity, carat weight, and additional characteristics such as fluorescence and symmetry. IGI, another prominent laboratory, also offers certification for lab-grown diamonds, providing consumers with a comprehensive assessment of the diamond's quality and authenticity.
For consumers seeking high standards and stringent grading criteria, AGS is a trusted option. They offer grading reports for lab-grown diamonds, providing detailed information to help buyers understand the diamond's quality better. EGL, a respected gemological laboratory, is also known to issue certification for both natural and lab-grown diamonds. Their reports include grading information that provides consumers with valuable insights into the diamond's quality and authenticity.