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Certification - Hallmarking

The application of the certification process by the INCM Contrastaria only applies to silver pieces weighing 2g or more. The material used is in our jewellery is 925 Silver and 24-carat Gold Plating. All jewellery is certified by the INCM Contrastaria where they independently test it and guarantee that it conforms to all legal standards of purity.

The hallmarking is done by the application of a mark which guarantees provenance by telling us where the piece was hallmarked, what the alloy is, and the jewellery maker.

Link to List of Valuers of precious metal alloys and gemological materials.

The costumer can, at any time, confirm the authenticity by using the services of the Contractor to verify the authenticity of the metal. INCM Constrastaria Marks Chart

Sofia O'Neill Mendes Esquivel Fernandes
Nif: 246417935
Activity title no. T7185 of Retailer de Ourivesaria - Website

​On the Banco de Portugal website you can consult the price of gold, silver, platinum and palladium, in accordance with the provisions of paragraph a), number 1 and number 2 of article 63.



Copyrights are protected, as well as jewellery designs.

esquivel. is a registered brand and it is the owner of all intellectual property rights contained on the website (, as well as of all the material published on it, including social media channels. All such rights are reserved. You must not use any part of the materials on the website for commercial purposes without obtaining a licence to do so from us. Legal action will be taken if so.