OMNIA jewelry is made of 925 sterling silver, gold plated 925 sterling silver, or 9 or 19 karat gold, meeting all quality criteria and duly certified by Contrastaria da INCM (Imprensa Nacional Casa da Moeda).
"Contrastarias da INCM provide this guarantee by verifying the legal fineness (percentage of precious metal contained in an alloy) and applying the hallmark along with the manufacturer's responsibility mark or equivalent,” explains INCM on its website.
The application of the hallmarks is mandatory on items weighing more than 2 grams. Thus, daily, after the production process is completed, the vast majority of our items are sent to the Assay Office for evaluation before being sold.
Get to know here the legal trademarks of Portuguese assay offices.
