Diamond Certificates

If a diamond has been independently graded by a laboratory, it is termed a certificated or certified diamond. At Ingle & Rhode, all of our diamonds above 0.2ct are supplied with laboratory reports confirming that the given diamond is of the specified size and quality.

There are more than twenty organisations around the world that offer these reports. Amongst the best known of these are the Gemological Institute of America (GIA), the Diamond High Council (HRD), the European Gemological Institute (EGL) and the International Gemological Institute (IGI).

There are minor variations in the way in which these different organisations grade diamonds, but they all focus on the Four Cs (Carats, Colour, Clarity and Cut). You can learn more about how diamonds are graded at our diamond grading page. Diamond certificates should also tell you whether the diamond exhibits a natural phenomenon called fluorescence.

Despite the benefit of having diamonds indepedently certified, we still recommend that clients visit us, wherever possible, to view diamonds in person and make their own assessment.

Please feel free to contact us if you have any questions or if you'd like to find out more about our bespoke jewellery service.