What is fai marked on a ring?

"FAI" marked on a ring typically indicates that the piece has been certified as being made of genuine gold, specifically 18 karat gold. The acronym stands for "Fédération des Artisans de l’Industrie," which is a French hallmark signifying quality and authenticity. This mark assures consumers of the ring's material purity and craftsmanship. Always check for additional markings or certifications for further verification.