"Diamante lei e luce lui" () is the debut single by Italian singer Annalisa. It was released on 7 March 2011 as the lead single from her debut studio album Nali. The song was written by Roberto Casalino and produced by Dado Parisini.
The song premiered during the tenth edition of talent show Amici di Maria De Filippi. "Diamante lei e luce lui" peaked at number 9 on the FIMI Singles Chart and was certified gold in Italy.
A music video to accompany the release of "Diamante lei e luce lui" premiered on 30 March 2011 on the website of newspaper Corriere della Sera and was then released onto YouTube on 5 April. The video was directed by Serena Corvaglia and Marco Salom.