Diamante is one of the three top executives of the Donquixote Pirates. He occupies the Diamond seat of the Donquixote Family and is the leader of the crew's Diamante Army subdivision.
He is the proprietor of the Corrida Colosseum of Dressrosa, where he earned his title as the "Hero of the Colosseum."
Debut: Chapter 700; Episode 629
(Source: One Piece Wikia)