All TALLISMA pieces are made of 925 sterling silver with rhodium plating or 925 silver with gold plating. The composition of each piece is displayed and can be found on each single product page of our website.



According to the Portuguese Legal Regime of Jewelry and Contrastarias, approved in annexation to Law No. 98/2015, TALLISMA’s articles are certified by Contrastaria do Porto da Imprensa Nacional – Casa da Moeda (INCM), the public body responsible for the authentication of precious metals in Portugal.



All of our pieces are subject to evaluation and marking by the INCM, as a guarantee of the authenticity of the precious materials used. “INCM’s Contrastaria provides this guarantee through the selection of a legal touch (‰ of precious metal content contained in an alloy) and the application of contrast with the responsibility mark, of manufacturer or equivalent.”, as stated on the INCM’s website.



In case of doubt regarding the marking and constitution of materials of our pieces, the customer can and should perform the services of Contrastaria to confirm their legitimacy.



These are the legal marks of the Portuguese Contrastarias.





On Banco de Portugal‘s website, you can consult the daily gold and silver price.