Our Mission is to provide a premium grading service and equipment unique to the diamond industry. The International Institute of Diamond Grading & Research (IIDGR) is part of De Beers group of companies, and ensures exceptional accuracy and outstanding knowledge.
With our heritage comes expertise, and with our expertise comes knowledge. We apply the collective knowledge from our 125 years of experience to stay at the forefront of diamond research so that our instruments and techniques are always the industrys finest.
Drawing on the De Beers Group of Companies 125 years of experience in the industry, the International Institute of Diamond Grading & Research (IIDGR) strives to apply every part of our expertise to every diamond which comes through our laboratories.
We only grade and inscribe naturally occurring diamonds using our ground breaking proprietary technology bringing diamond grading into the 21st century. The International Institute of Diamond Grading & Research (IIDGR) is proud to pioneer accurate and consistent grading in all our global laboratories.
The International Institute of Diamond Grading & Research offer detection instruments that can readily screen out simulants, synthetics and treated diamonds.
“Venus Jewel is proud to offer diamonds which are IIDGR certified. A ground breaking and consistent grading service offered by the De Beers Group of Companies”
“First Class Grading Service”
Michael Rawlinson - CEO National Association of Jewellers
“World class grading service reinforcing confidence in the UK diamond industry”
Victoria McKay - COO London Diamond Bourse
“Best in the business”
Lucy Reece-Raybold - Executive Director of Business Development Company of Master Jewellers
Market leading technology pioneering support for integrity in the diamond industry. Click below to find out more about the instruments we offer.
Spectrometer based system for automatically screening melee for potential synthetics and simulants.
Compact screening device designed to determine natural diamonds.
Specially designed for testing stones in mounted jewellery but can also be used to test loose stones.