Silver Hallmarks and Certification

Our products are made in sterling silver, in compliance with all quality criteria duly certified by INCM – Oporto Assay Office.
INCM provides this guarantee by verifying the legal mark (perming precious metal contained in an alloy) and the existence of the Assay Office mark next to the Manufacturer’s responsibility mark or equivalent.
The application of Assay Office marks is only mandatory for silver pieces that weigh more than 2 grams and gold pieces that weigh over 0,5 grams.
Check here the Portuguese Assay Office marks or see the below image for reference.

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