Autumn offer: -20% on all our jewelry
Free shipping to Europe
Customer service 7 days a week | Google reviews 5/5
At Simatta Bijoux, transparency and trust are at the heart of our commitment. That is why we want to explain clearly what hallmarks are, and why they matter when you buy a piece of gold, silver or platinum jewelry.
What is a hallmark?
A hallmark is an official mark stamped on a piece of precious metal jewelry. It certifies the purity of the metal (legal fineness) and, in some cases, the identity of the manufacturer or importer.
Mandatory hallmarks in France
In France, hallmarks are mandatory for all jewelry in:
Below these weights, a hallmark is not mandatory, but it remains a sign of quality and transparency.
The different types of hallmarks
The fineness mark (or guarantee hallmark):
Applied by French Customs, it certifies the precious metal content of the jewelry.
Here are the main symbols:
The maker’s or importer’s mark:
It takes the form of a lozenge containing initials and a symbol. It identifies the craftsperson or company responsible for manufacturing or importing the piece.
All our jewelry complies with French legislation and bears the required hallmarks.
Why do these hallmarks matter?
✔️ Legal guarantee of the quality of the precious metal
✔️ Security for resale or insurance
✔️ Proof of authenticity in case of dispute
✔️ Traceability of the jewelry
What do these hallmarks look like?

A legal obligation
The presence of these hallmarks is checked by the French Customs authority (Direction Générale des Douanes). Any piece sold without a hallmark when it should bear one is illegal.
At Simatta Bijoux, trust is engraved in every piece
All our gold, silver and gold-plated jewelry strictly complies with the regulations. You can buy with complete peace of mind!
📞 A question about a hallmark? Contact us, we are here to help.