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 possesses a full load displacement of 732 tons, exhibits considerable length, has an unspecified beam, and a draught of . The primary propulsion system is a single Fincantieri GMT BL230-BN diesel motor, which generates  to a single controllable-pitch propeller, facilitating the vessel's movement.