Diamant Prüflabor GmbH, DPL
Assaying & Hallmarking
Diamond Grading Certificate, Laboratory
The Diamant Prüflabor GmbH grades polished diamonds according to the rules of the International Diamond Council (IDC). The IDC was founded by the World Federation of Diamond Bourses (WFDB) and the International Diamond Manufactures Association (IDMA), in order to develop detailed grading rules from practice. These so called IDC-rules were accepted from the WFDB and IDMA. The IDC rules are recognized by all diamond bourses world-wide. The DPL was with the intention to establish the IDC rules. From the beginning, the diamond trade and the customers could trust the quality of the DPL-certificates, which also had become evident through the unlimited liability of the correctness of the certificates. The official confirmation for the quality of its work was obtained by the Diamant Prüflabor through the accreditation as a recognized testing laboratory.