IDRC Diamonds Labs

luxury jewellery purchase

Premier House 12-13 Hatton Garden, London, EC1N 8AN Appointments are available from 9.30 am - 5.30 pm.

Fully equipped grading laboratory

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

Certified valuation gemmologists

Our lab is operated by certified gemologists 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.

Diamond grading valuation reports

Diamond Grading Reports IDRC keep a databank of all the reports produced. An IDRC report represents the impartial opinion of unbiased professionals. All diamonds are unique and individual, created by nature, polished by humans. 

Valuation reports for loose, polished diamonds

The IDRC produces quality reports for loose, polished diamonds. We describe the unique measurable features of a diamond according to international standards, focused on the "4 C's" Carat, Colour, Clarity and Cut. Stones are examined by a minimum of 2 diamond graders. Our experience, combined with modern technology ensure we offer the highest level of expertise in our practice. 

Diamond valuation report

Offering a complete, comprehensive and technical guide to your diamond including Colour, Clarity, Carat Weight, Diameter, Depth. Crown Angle and Height, Pavilion Angle and Height, Culet Size, Culet off centre, Table size, Table off centre, Star Lower and Upper Girdle and Fluorescence. These reports also contain illustrations of the diamond’s actual proportions. With mapped out markings included with the expanded proportion data. IDRC reports are clear and understandable. Verbal Grading Reports Expert pre-grading verbal opinions available from qualified professionals.