De Beers Institute of Diamonds is proud to offer ground-breaking, low-cost testing services designed to strengthen confidence in diamonds.
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.
Consumer confidence is at the heart of everything we do. Our fundamental promise of accuracy, knowledge and expertise allows us to stand confidently by our results. Our 130 years of diamond expertise ensure the quality of our service is the best in the business.
De Beers Institute of Diamonds now offers a Set Diamond Service, a diamond jewellery testing service designed to ensure that all diamonds within your jewellery are natural.Learn more about the Set Diamond Service
Our Melee Testing Service uses our state-of-the-art technology and some of the world’s most future-proof instruments for screening diamonds in the 0.0013ct to 0.20ct size range, backed by years of research and development by our diamond experts.Learn about Melee Testing
We have testing services available at our Laboratories in Antwerp, Maidenhead and Surat.
We have a 10 working day turnaround time.
This depends on the service you require:
To see the Melee Testing Service fee schedule, go to the Melee Testing Service page.
To see the Set Diamond Service fee schedule, go to the Set Diamond Service page.
Register for an account that will give you access to our testing services through our client portal, enabling you to submit diamonds for testing and see your order history 24/7.Register here