The price of each print is generally based on the size of the edition. Prints from a limited edition are worth more than those from an unlimited edition. The smaller the edition size, the more valuable it is.
Many artists to sell their prints with documentation, a Certificate of Authenticity, which states in detail the kind of print, details of the edition size, the number of the print being sold, technique, the paper used as well as artist's information and signature. An original artist's signature on the Certificate may also add value. Some Certificates also include an individual serial numbered hologram, which prevents against fraud.