I contacted the person I know at my local Chambre des Metiers and she said that she could find no legal definition for artisans d'art but there was a lot of new legislation with the Fait Maison for restaurants. It's tricky area . I am perfectly happy to be Fabrication Artisanale for my children's clothes that definition doesn't bother me at all and eel it describes my process just fine, however I am eternally curious . I love your jewellery Willy it's very special, I have been looking intermittently for some mother of pearl cufflinks I don't suppose you have something in the 40 /50 € price range?