Bulwik has a daugther company that buy`s rough diamonds and sell`s polished diamonds. We strive for full transparancy that is why we do every step of the chain ourselves. From mining the rough diamond to selling the polished diamond in a ring. 

HRD Antwerp 

HRD is the laboratory Bulwik uses for certification of every diamond above 0.30ct. You will allways get the certificate together with your Bulwik Jewel.

The origin story of HRD Antwerp is intertwined with that of The Antwerp World Diamond Centre (AWDC). The latter is a private foundation, established in 1973 as the Hoge Raad voor Diamant (HRD) or Diamond High Council, at the initiative of the Belgian government and diamond industry representatives.

In 2007, the Diamond High Council was restructured and split into two different enterprises: AWDC and HRD Antwerp. As the official representative of the diamond community, the AWDC is committed to boost business in the rough and polished diamond trade, as well as manufacturing, by organizing B2B initiatives. HRD Antwerp, on the other hand, became today’s leading authority in diamond certification.

Kimberly Process

The Kimberley Process (KP) is a binding agreement that imposes extensive requirements on every participant. The visible evidence of this commitment is The Kimberley Process Certification Scheme (KPCS) that both safeguards the shipment of ‘rough diamonds’ and certifies them as conflict free.





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