Certification

Perestrelo & Cunha is registered with the Porto Assay Office (Contrastaria do Porto) as a Jewellery Retailer — Distance Communication Means, under the Legal Regime for Jewellery and Assay Offices (RJOC), approved by Law No. 98/2015 of 18 August and amended by Decree-Law No. 120/2017 of 15 September (Articles 41 and 42).

  • Activity Licence No. T7257
  • Tax ID (NIF) 504 780 255
  • Registered address: Lgo Toural 102/103, 4810-427 Guimarães

Download Activity Licence T7257 (PDF)

Legal Hallmarks of Portuguese Assay Offices

All jewellery items sold in Portugal must bear the legal hallmarks provided for in Law No. 98/2015 of 18 August and Decree No. 2/2006 of 3 January. Legal hallmarks include the responsibility mark (or maker's mark) and the assay office mark, which guarantee the authenticity and fineness of the precious metal.

Chart of legal hallmarks of Portuguese assay offices — assay marks, common control marks and other marks

New Assay Hallmarks

Since 1 January 2021, new assay hallmarks have been in effect for precious metals. Each metal is identified by a specific animal:

  • Platinum — Hummingbird head
  • Gold — Ram's head
  • Silver — Rabbit's head

The orientation of the head (left or right) indicates the fineness level of the metal. Items made from recycled precious metal receive a goldfinch mark, and items from an unknown manufacturer receive an owl mark.

Table of new assay hallmarks — current and new marks by precious metal type

Common Control Marks (Convention)

Common Control Marks (CCM) are internationally recognised under the Vienna Convention. Each mark is composed of a balance, the fineness number in millesimal and the outline identifying the precious metal.

Common Control Marks of the Vienna Convention — platinum, gold, palladium and silver with respective millesimal finenesses

Dispute Resolution

In the event of a dispute, the consumer may resort to an Alternative Dispute Resolution entity. For more information: www.consumidor.gov.pt