The International Institute of Diamond Grading & Research
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.
- +44 (0) 20 7858 7887
- 17 Charterhouse Street
London, EC1N 6RA
United Kingdom
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Diamond Authenticity Testing
The International Institute of Diamond Grading & Research
These services fully test all goods to verify diamonds, identify synthetics and simulants, and then return them in tamper evident sealed parcels with clear labelling as to the nature of their contents.Our laboratories are in three global locations: Antwerp, Surat, and Maidenhead. At all our facilities, our experts use comprehensive analysis using a variety of different in-house and proprietary equipment to ensure that every diamond we assess is natural.
