Jewelry makers work with precious metals after studying the designs and mock-ups, and checking that the volumes and proportions work well.

Gem setters insert stones into the metal to show off their beauty and - as far as possible - to hide the metal structure without compromising the strength of the piece.

Lapidaries cut stones in three dimensions to ensure they fit snuggly into the metal setting. The most notable example of this remarkable skill can be seen in the Serti Mystérieux™.

Polishers buff the internal and external surfaces of the pieces at different stages of the production process.

Enamelers work with metal and enamel powder (using a vitrification process) to produce parts for the final design of the piece.

Watchmakers assemble all of a timepiece’s components. They then check its resistance to water and the correct functioning of all the parts.