All precious metal items exhibited in our online store have the official brand of Portuguese Contrastaria.
In case of doubt about the authenticity of the marks, you can use the services of the contrasting.
You can see the table of the brands of the contrasts here, or go directly to the INCM page.
You can also use an official evaluator, registered with INCM.
To see the list of available appraisers, click here.