| Gustave Rives - Architect | Author of the Dufayel Hotel (1905). |
| Léonard Rosenthal - Real estate promoter | Diamantaire sponsoring the project. |
| Charles Lefebvre - Architect | Chief designer of the Arcades. |
| Marcel Julien - Associate architect | Lefebvre collaborator on the project. |
| Louis Duhayon - Associate architect | Lefebvre collaborator on the project. |
| René Gobert - Iron and steel | Author of metal decorations. |
| Fernand Jacopozzi - Master glass | Creator of decorative stained glass elements. |
| René Lalique - Master glass | Author of glass fountains (disappeared). |
| René Berger - Architect | Designer of beauty salons (1928). |