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Diamond Selection & Grading - Top Quality Diamond Grades | Forevermark


After an eligible diamond is cut and polished it is sent to the Forevermark Diamond Institute, with locations in Antwerp, Belgium, Maidenhead, UK and Surat, India.

At the Forevermark Diamond Institute, our experts draw on proprietary, state-of-the-art technologies and years of experience to examine each diamond, going beyond the technical 4C’s criteria to hand-select only the most beautiful to become Forevermark.

A diamond will go through, at minimum, a seventeen-step process here, being rigorously examined by diamond experts for any flaws or imperfections that will impact its beauty. The diamonds are also scanned by proprietary machines to check for their authenticity, carat weight and symmetry, and then hand examined for color categorization and inclusions, or flaws visible to the naked eye.

A Forevermark diamond must be completely natural, and must have close to a perfectly polished table, where the inscription is placed. Of all the diamonds in the world, less than 1% qualify to become Forevermark diamonds. The end result is that Forevermark diamonds are the world’s most carefully selected diamonds.

Forevermark Grading Reports

For diamonds of ½ carat or more, Authorized Forevermark Jewelers include a Forevermark Diamond Grading Report produced by expert gemologists at the Forevermark Diamond Institute. The Report features the unique identification number inscribed on the diamond and an accurate blueprint of the Cut, Color, Clarity and Carat of each diamond. It is possible to request a Report for a diamond of a lower carat weight.

Every Forevermark diamond has been hand selected and has received a unique inscription as verification of our promise of beauty, rarity and responsible sourcing, so you can feel confident that even those diamonds without grading reports meet our strict quality and integrity parameters. 


Using proprietary technology, each Forevermark diamond is inscribed with a unique number, proof that it is of exceptional quality and utmost integrity.