Accuracy, Expertise and Experience

IDRC is a UK based diamond grading laboratory offering diamond grading reports and jewellery appraisals.

IDRC offers peace of mind that the diamond has been independently inspected and examined for authenticity and quality.

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.

Grading Methods and Tools

Here at IDRC, we handle the process of grading with great care and attention to detail. Each diamond or piece of jewellery that we handle is individually studied and acknowledged by our gemologists who, with their expertise will asses and grade according to international grading standards.

Diamond Reports

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

Our Diamond Reports give an accurate assessment of a diamond’s cut, colour, clarity and carat weight according to strict international standards.

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

Gemstone's Education

A Diamond’s brilliance and beauty are 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.

Learn everything about Gemstones as we explain how the cost is affected and how they add a unique feel to jewelry.


Client's 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 straightforward. The staff were so helpful and friendly, it was like shopping in Harrods being offered …

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 …

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


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 …

Thanks for your quick service. I’ll recommend my family and friends

Jacob Brown


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


Recommended by Primassure Ltd – Specialist Insurance Broker for Personal Jewellery & Watches.

How can we help you?

Whether it be to add to your collection, that firstspecial wristwatch or the restoration of a much lovedheirloom we are here to help.
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