Listen to Diamonds are a Girl's Best Friend (50's Classic) online. Diamonds are a Girl's Best Friend (50's Classic) is an English language song and is sung by Marilyn Monroe. Diamonds are a Girl's Best Friend (50's Classic), from the album Memory Lane the Ultimate Collection 50 tracks from the 1950's, was released in the year 2015. The duration of the song is 3:30. Download English songs online from JioSaavn.