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In 2017, we obtained the Chain of Custody certification from the Responsible Jewellery Council. This recognition testifies to our commitment to responsible mining and processing, based on sustainable processes and rigorous gold traceability. A journey that combines ethics, respect, and long-term vision.
Furthermore, from 2026, Mattioli will file its sustainability report, transparently reinforcing the value of its choices.

Mattioli selects its suppliers with the utmost care, strictly following the Kimberley Process. In this way, the diamonds that illuminate our creations do not carry the weight of conflict zones, but exclusively reflect a light of peace, responsibility, and respect. We require a guarantee statement on every invoice, a tangible sign of purity and transparency throughout the entire supply chain. A commitment that accompanies every piece of jewelry, from its origin to the wearer.

Mattioli invests in its flagship workshop: from precious stones that shine like stars, to the fiery casting that shapes the metal, to the modern techniques that weave magic. With over 100 master jewelers by its side, Mattioli not only guarantees extraordinary quality and uniqueness but also orchestrates a reverent respect for the environment.