Jewelry care

Our certificate of authenticity

To guarantee the authenticity and origin of a piece of jewelry created by Henrich & Denzel, we not only hallmark each individual creation, but also issue a certificate that is handed over to you by our partner.

This certificate warrants that the piece of jewelry concerned has been created exclusively in our manufactory in Germany, by qualified staff and using state-of-the-art technology, and that it has passed a stringent quality check. The fineness of the precious metal used is guaranteed by the hallmark stamped on each piece, i.e. 950 Pt or 999 Pt, and 750 Au or 999 Au respectively. We assure our customers that Henrich & Denzel exclusively uses naturally grown diamonds. The stones’ weight and purity are also engraved in each piece.

We warrant that our diamonds come from legitimate sources, and have thus been mined in compliance with UN Resolutions 1171, 1173, 1306 and 1343. These resolutions require that all uncut diamonds, irrespective of where they have been sourced, must be accompanied by the Kimberley Process Certificate, a certificate of origin that is issued in the country of origin and confirms that the uncut diamonds exported have been obtained from legitimate sources. The Kimberley Process Certificate is part of what is called the “System of Warranties”, which obligates all reputable diamond cutters and traders to cut and sell only “conflict-free” diamonds.