As Diligent she not only capture several merchantmen but also two British Royal Navy vessels: a schooner and a brig.

On this voyage she captured several British merchant vessels: schooner Antelope and brig Hanna, and the ships Joseph, Swifise [sic], and Diana.

[7] On 24 July 1810 Dame Ernouf captured two Spanish vessels, one sailing in ballast from London to Caracas, and the other carrying ironmongery from Bristol to Cadiz.

[13][14] In late December, Diligent arrived in Saint-Nazaire from Philadelphia, laden with despatches from the French ambassador to the USA.

However, on 24 December 1813 Lloyd's List reported that Derwent had recaptured Racehorse, which the French privateer Diligent, of 14 guns and 120 men, had captured.

Diligent put the crews from the vessels she had captured on board Rio de Mandego, which arrived at Plymouth on 21 December.