DIAMANTINO. – Prelature in the state of Mato Grosso in Brazil, suffragan of Cuyabà. It was erected by Pope Pius XI on 22 March 1929 by the apostolic constitution Cura Universae; the boundaries assigned at that time were subsequently modified by a decree of the Sacred Consistorial Congregation dated 22 June 1940. The prelatic church is that of the Immaculate Conception existing in D. It is entrusted to the Society of Jesus.
BIBL.: AAS, 23 (1931), pp. 320–22; 32 (1940), pp. 42–43. Enrico Josi