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HRD Antwerp

Grading & laboratory services

The report the trade grades by.

Independent, scientific and globally recognised — an HRD grading report records the 4Cs of your diamond with the rigour that has defined Antwerp for centuries.
Featured services

Everything a graded diamond needs.

01

Diamond grading

Full 4C reports for loose polished diamonds.

02

Report archive

Retrieve and re-verify any report ever issued.

03

Laser inscription

The report number, etched into the girdle.

04

Our products

Instruments and consumables from our bench.

Diamond grading

Our diamond grading reports.

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.

HRD natural diamond grading report
Report · Natural

Natural Diamond Grading Report

The full 4C record for natural polished diamonds — carat, colour, clarity and cut, with fluorescence and proportions.

HRD diamond identification report
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.

HRD jewellery grading report with photograph
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.

HRD jewellery grading card
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.

Mounted pieces are accepted at all three laboratories.