Certification
All parts are manufactured in Portugal, with silver 925 and 925 silver with gold bath and are legally certified by INCM –Imprensa Nacional Casa da Moeda that "provide this guarantee by checking the legal touch (expertise of precious metal contained in an alloy) and applying the contrast with the brand of responsibility of manufacturer or equivalent".
All items are legally marked where applicable. Only silver parts weighing more than 2 grams have mandatory branding.
You can check all the legal marks here.
At Banco de Portugal you can access information on the daily prices of silver and gold.
In case of doubt about the authenticity of the parts, the buyer may use the services of Contrastarias for the purpose of verifying the authenticity of the material.
Maria João Oliveira owns the Pet Jewel brand has the title of Retailer of Goldsmith without establishment.