Composition and Care

Manufacturing Process

Portuguese filigree is the result of a meticulous interlacing of fine sterling silver or gold wires welded together with small metal balls, forming drawings that depict the lives of the Portuguese people. Today the tradition is not lost. There is still an ever-increasing interest in this art that strengthens its ties with the past, keeping its intrinsic sophistication.
It is a manual art that requires a lot of expertise on the part of the artisan. Your piece will be unique, brought directly from the artisan to you.

Quality Certification

Our products will have always two marks: the manufacturer's, which is the artisan mark and the Oporto assay office mark (recognized by both the Portuguese State and the International Association of Assay Offices ( 

Since we work with many artisans, the manufacturer's mark will change from piece to piece, but the assay mark stays the same (image below).


For additional information, free to contact us. In case you want to verify the authenticity of our items you can submit them to an Assay Office (Analytical Laboratory).

The assay office mark contains the fineness of our silver, which is displayed at the bottom in thousandths (image above).A fineness of 925 means that in 1000 units of mass of the alloy, 925 units are pure precious metal. This grade is the one used in our jewellery. You can see the different Portuguese marks in here. You can also check the international price for silver or gold at (


Jewellery Colours

In the next table you can see all the possible colours for our sterling silver jewellery.
Gold-plated means that your jewellery will be covered  by a very thin, almost microscopic, film of pure gold by electroplating it. Some businesses refer to gold-plated jewellery as gold-overlay; however, these are essentially the same thing. You can expect it to be gold in colour.
The rhodium-plated colour is the result of coating the surface using the precious metal rhodium for plating.  This gives a stunning blackened look to the silver.
The silver colour is the natural colour of the silver. Over time, the silver will tarnish naturally and your jewellery will acquire a vintage-looking grey finish










Care and Maintenance

Silver is a metal sensitive to moisture, heat, cosmetics, cleaning products and air pollution, among others. The darkening is a natural process called oxidation, which can lead to a change in its original colour. It will leave the sterling silver with a vintage-looking grey finish. Keep in mind that this change does not represent a change in quality.
Please follow the instructions below to keep your jewellery as new: Store your filigree jewellery individually in tissue paper, velvet or suede. Thus, there is no risk of damaging it.
Whenever polishing your piece, you should use a liquid silver-cleaner and follow the instructions on the label. The piece will be as bright as before.
If your filigree is gold-plated or has a coating of rhodium, you are advised not to apply any cleaning products, which includes polishing or scrubbing with excessive friction. To preserve the coating of your jewellery, you should just wipe it with a dry cloth; do not rub.
To return it to its original lustre, you should go to a jeweller's shop and ask them to apply a new coating according to the original one. We will also be more than happy to help restore the original appearance of your filigree jewellery. 
Please contact us to ask for more details. Our artisans can help to recover the beauty of your filigree jewellery.