The International Institute of Diamond Grading & Research has been established by The De Beers Group of Companies, the organisation most closely associated with both the mystique and science of the world's most sought-after stone. Its mission: to provide a premium service and ground breaking proprietary screening instruments to the industry. Over the past 25 years the De Beers Group of Companies has been uniquely positioned to conduct research into both rough and polished diamonds. This research has led to the formation of the International Institute of Diamond Grading & Research, where we are bringing the art of diamond grading into the 21st Century through our use of proprietary diamond testing equipment developed by the De Beers Group of Companies over all those years of research. Using this equipment we are able to accurately, consistently and reliably grade diamonds to the exact same standard at all of our world class facilities situated all over the globe. Our heritage of expertise, accuracy and probity is integral to everything we do. The dedication and precision we devote to assessing diamonds is now available to our clients around the world.