All Joana Mota Capitão Jewelery pieces are produced in Portugal and meet the highest quality standards. The materials used are 925 silver and 925 silver with gold plating (24 k) duly certified by the INCM Assay Office , with the occasional use of precious stones.

The INCM Assay Office ensures the public service of guaranteeing the type and feel of articles with precious metals, applying the hallmark next to the manufacturer's responsibility mark.

If you have any doubts about the authenticity of the marks, please contact the INCM Assay Office to check the respective pieces.

Click here to see the Assay Marks table.

Click here if you would like to see the updated price of metals.

Click here if you would like to have access to the list of registered appraisers, managed and organized by INCM, whenever the sale of precious metals occurs.

National Press - Casa da Moeda

Lisbon Assay Office | Activity code: L260025
Registered on 01/16/2017