A typical GIA lab report

Understanding the GIA Diamond Grading Report

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How Does the GIA Grade Their Diamonds?

The Gemological Institute of America (GIA) created the 4 Cs (clarity, color, cut and carat weight) used to grade diamonds. The 4 Cs are now recognized by diamond jewelers and other gemology labs across the world, such as EGL, IGL and WGI, as the accepted grading method for all diamonds.

Each GIA certificate contains a report number, allowing a potential customer to verify the certificate on the GIA website. The GIA also provides interactive online reports for all natural, untreated diamonds, allowing you to view the diamond close-up to get a precise idea of the quality of the diamond and the placement of the imperfections in the stone. This is especially useful if you are purchasing diamonds online.

To learn more about how to understand a diamond grading report, take a look at the GIAs insightful video about the diamond grading process.

If you would like to know more about GIA grading methods or have any questions about diamond jewelry, we can always be contacted on 1-800-557-7095 where one of our expert diamond jewelers will be happy to assist you. You can also find guidance on several topics related to loose diamonds and diamond jewelry by visiting the diamond education section of our website. Alternatively, you can email us at sales@caratsdirect2u.com with any questions you may have.