Certification 2015 :
Certification has been established by Jacques-Armand Akoun on Jul 29, 2015.
Certification 2018 :
Certification has been established by Jacques-Armand Akoun on Nov 26, 2018.
Experts study the work and career of an artist then establish an independent and reliable average price value. The average price value situates the artist on a price range for a given period. The experts may also be asked to establish a more precise estimate for a particular work.
Unless otherwise specified, price value is established for a 15P format (65x50cm).