Cognomen Diamanto (Diamanto 
, Adamas 
, Diamas 
) , in all the world, is quite a rare last name. The last name Diamanto is characteristic of Greece, where it is quite a common surname, Denmark, where it is a rare surname, and Philippines. In absolute terms, it is the most numerous in Greece, Philippines, and Indonesia. Also, Diamanto is the forename as well as the last name.