A distinctive heritage

Our mission is to provide a premium grading service and proprietary equipment unique to the diamond industry.

The De Beers Group of Companies, the organisation most closely associated with the mystique and science of diamonds, established The International Institute of Diamond Grading & Research (IIDGR) in 2008.

Since then, we have remained true to our vision of providing premium services and ensuring we are contributing to the industry by preserving the integrity of each diamond that passes through our global laboratories.

World Class Laboratories

Understand more about our processes and global laboratories.

A De Beers Group Company

The De Beers Group of Companies was established in 1888. They are the world’s leading diamond company, with unrivalled expertise across the entire diamond pipeline employing more than 20,000 people around the globe.

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Our Services

Over 125 years of industry expertise ensures the quality of our service is the best in the business.


Grading Reports

A comprehensive study of a diamond’s carat weight, colour, clarity and cut with an accurate and to scale plotted diagram.


Diamond Sealing

This service aims to further ensure the integrity of every diamond that leaves any of our global laboratories.


Detection Instruments

We offer detection instruments that can readily screen out simulants synthetics and treated stones.