The slave ship Diligent departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Martinique.

Vessel: Diligent; flag: France. People recorded in connection with the voyage: Investor: Buat de la Croix, Michel; Investor: Billy, Guillaume; Investor: Billy, François; Investor: Massue, Hubert de la; Captain: Mary, Pierre. The voyage began at Vannes on 31 May 1731. Principal recorded place where captives were acquired: Jacquin (Bight of Benin). Principal recorded disembarkation place: Martinique, place unspecified. Estimated mortality during the crossing: 4.0%. Recorded outcome: Voyage completed as intended.