Knowledge and


Piat’s corporate mission is to evaluate coloured gemstones.

We care about sharing our passion and expertise though a thorough training offer.

These training courses were at first developed for gemmology students to help them know better about the different sides of gems dealing ; soon, they were requested by our customers, concerned about improving their co-workers skills and enhancing their knowledge about gemstones.

These programs are now for professionals only and focus on two major subjects: cutting and analyzing gemstones.

Cutting coloured stones - 15h

Recutting, a major issue - 15h

Gems Analysis - 3h

The gem trade - 1h30

Inclusions - 2h

Custom-Made training