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Cognomen Berlian (Berlian , Brillant ) , in all the world, is a common last name. The last name Berlian is characteristic of Reunion, where it is quite a common surname, Indonesia, where it is quite a rare surname, and France. In absolute terms, it is the most numerous in Indonesia, France, and the Democratic Republic of the Congo. Likewise, Berlian is the forename as well as the last name.