Diamantina has a full load displacement of 732 tons, is  long, has a beam of , and a draught of . Main propulsion is a single Fincantieri GMT BL230-BN diesel motor, which provides  to a single controllable-pitch propeller, allowing the ship to reach .
Diamantina boasts a full load displacement of 732 tons, measures considerable length, has an unspecified beam, and a draught of . The main power source is a single Fincantieri GMT BL230-BN diesel motor, which produces  to a single controllable-pitch propeller, allowing the ship to reach .