All Joana Mota Capitão Jewellery pieces are produced in Portugal and are up to the standards of quality. The materials used are sterling silver and gold-plated sterling silver with the occasional use of stones, such as zirconium stones, ruby stones, and more, duly certified by the ICNM Assay Offices.
The INCM Assay Offices provide that guarantee by verifying the legal fineness (parts per thousand of precious metals contained in an alloy) and applying the hallmark next to the manufacturer or equivalent responsibility mark.
In case of any questions or doubts about the authenticity of the marks, please refer to the ICNM Assay Offices to verify the pieces.
Click here to see the table of marks of the Assayers (Portuguese only).
Click here if you would like to see the updated price of precious metals.
Click here in case you would like to have access to the list of the registered valuers, which is managed and organised by the ICNM, whenever the sale of used of precious metals occurs.
Imprensa Nacional - Casa da Moeda
Contrastaria de Lisboa | Activity code: L260025 | Registered in 2017/01/16