HRD Antwerp is the subsidiary of the Antwerp World Diamond Centre (AWDC), a private foundation which represents the Antwerp diamond industry worldwide.

Located in the heart of the diamond centre, HRD Antwerp has been serving the international diamond industry for more than 30 years. HRD Antwerp operates six services: Diamond Lab, the first ISO-certified diamond grading lab, which issues one of the world's most respected diamond certificates; Precious Stones Lab; Education; Graduates Club; Equipment and Research.

HRD Antwerp stands for quality, tradition and the highest industry standards.

By entering a valid certificate number and weight the HRD Antwerp Certificate Link gives you the opportunity to check on the internet the details of your Diamond Certificate and your Colour Certificate issued after January 1, 2005. The details of your Diamond Identification Reports issued after January 1, 2008 are also available.

From January 1st, 2009 HRD Antwerp has launched new certificates with a refined cut grade.

Accessible in 5 languages the HRD Antwerp certificate link connects you directly to our extensive database where we keep your ISO certified details of your diamond for 10 years.
For more information please contact the HRD Antwerp - Diamond Lab: +32 3 222 06 25 or e-mail

Please enter the following information to confirm your certificate:
Certificate Number:
Carat (weight):
Limitations and Restrictions