Independent, scientific and globally recognised — an HRD grading report records the 4Cs of your diamond with the rigour that has defined Antwerp for centuries.
Every diamond that passes the HRD laboratory leaves with one of three documents — each recording the stone’s identity and the 4Cs with the same scientific rigour.
Report · Natural
Natural Diamond Grading Report
The full 4C record for natural polished diamonds — carat, colour, clarity and cut, with fluorescence and proportions.
Report · Identification
Diamond Identification Report
Confirms a stone’s identity, natural origin and any treatments — for smaller stones or where a full grading is not required.
Jewellery grading
Our jewellery grading reports.
Mounted pieces deserve the same certainty as loose stones. HRD grades finished jewellery — recording the metal, the setting and every diamond in it.
Report · Jewellery
Jewellery Grading Report
The full record of a finished piece — precious metal, setting, and the grade of every diamond it carries, with photograph.
Card · Jewellery
Jewellery Grading Card
A wallet-sized companion to the report — the piece’s essentials and a scannable link to its full record in the HRD archive.