All precious metal items displayed in our online store bear the official hallmark of the Portuguese Assay Office. If you have any doubts about the authenticity of the hallmarks, you can contact the assay offices. You can consult the table of hallmarks of the assay offices. here (old) and here (new), or go directly to the page of INCM.

You can also use an official appraiser registered with INCM. To see the list of available appraisers, click here.