All items produced with precious metals are submitted to legal certification, through the engraving of a hallmark, by the Assay Office of the Imprensa Nacional da Casa da Moeda – INCM HALLMARKS

Current assay hallmarks:

For more information regarding the processes, guarantee, and certification carried out by the INCM (and the Portuguese Assay Offices), please visit the Contrastarias website.

Certification by the Assay Office is mandatory for silver items weighing more than 2 grams, and for gold items weighing more than 0.5 grams.

All our silver jewellery has a 925 purity hallmark. Jewellery weighing less than 2 grams is marked with our responsibility mark; jewellery weighing more than 2 grams is marked with both our responsibility mark and the official assay hallmark.

In case of doubt regarding the authenticity of the marks and for verification purposes, all buyers may consult the services of the Assay Offices.

To access information on the daily market price of gold, silver, platinum, and palladium, click here.

Economic operator name: Marta Alexandra Nunes de Almeida

Tax identification number: 230880193

INCM activity title number: T0571.0

Artisan status recognized by the Institute for Employment and Vocational Training since 28-08-2018.

Produced by an Artisanal Production Unit recognized by the same Portuguese State Body since 28-08-2018.

®Martha Almeida is a Portuguese brand registered with the INPI.

  • HANDMADE IN PORTUGAL WITH CERTIFIED QUALITY

  • COMMITTED TO SUSTAINABILITY

  • FREE SHIPPING FOR PURCHASES OVER THE MINIMUM VALUE

  • AFTER-SALES SERVICE IN OWN WORKSHOP

1 4