She was awarded the 2022 Prix Goncourt for her autobiographical novel Vivre vite (English: Live Fast).

[6] She won the Goncourt short story prize in 2007 for her collection L'amour est très surestimé (English: Love Is Very Overrated),[7] then the Grand Prix Jean Giono for Une année étrangère (English: A Year Abroad) in 2009.

[8] On 3 November 2022, she was awarded the 2022 Prix Goncourt for Vivre vite, a récit about the death of her husband, Claude, in 1999 at the age of 41.

[10] Giraud won after the jury underwent fourteen rounds of voting, the maximum amount permitted.

The final vote ended in a stalemate and, in accordance with the rules, the president of the Goncourt Academy cast a deciding vote, selecting Giraud's novel over Giuliano da Empoli's The Wizard of the Kremlin (Le mage du Kremlin).