IDRC is a UK based diamond grading laboratory offering diamond grading reports and jewellery appraisals.
IDRC has a fully equipped grading laboratory, based in Hatton Garden. Our lab is operated by certified gemmologists who together combine multiple years of experience and knowledge in the diamond field in order to provide accurate and professional opinions.
IDRC offers peace of mind that the diamond has been independently inspected and examined for authenticity and quality.

Our Customer Reviews
At first I was unsure if I had arrived at the right place, the building was a bit like a labyrinth but after I had got to the right door it seemed so straight forward. The staff were so helpful and friendly, it was like shopping in Harrods being offered ...
I bought a loose diamond from a trader and IDRC said they could certify for me. It was amazing to see how it's done and the level of experience they have. They even knew roughly how much I paid for it!Sophia Wilson, London
Thanks for your quick service. I'll recommend my family and friendsJacob Brown, Luton
After buying my ring from an online retailer, I asked the IDRC team to examine and verify it for me as I needed the peace of mind. They were really nice and assured me that I had bought a nice diamond. It was a relief, especially after being so nervous ...
Brilliant, professional team! It was not just a valuation, they gave the time to explain and answer all of my questions. I had other items of jewellery too which they were more than happy to offer advice on what I should do with them.Adam McEnroe, London
When I arrived at the IDRC lab, the gemologist saw to me straight away. I liked that I had the option to wait while my ring was examined and checked rather than leaving it behind. They took all the details of my ring and photographs, and within half an hour ...

At IDRC we keep a databank of all the reports produced. An IDRC report represents the impartial opinion of unbiased professionals. Read more..

Our diamond valuation report prices start from £60. However, we have a limited time offer – second valuation report half price! Read more…

A Diamond’s brilliance and beauty is unsurpassed. Created millions of years ago, their rarity is what separates these gems from all the rest. Buying a diamond is a thrilling and intimate experience.  Read more…