"Black Diamond" is a song by American hard rock band Kiss, written by rhythm guitarist Paul Stanley. "'Black Diamond' was written almost exactly as it is," he said, "except that the riff wasn't there; Gene [Simmons] brought that part in … It's all about arrangement and embellishment. That's what you're supposed to do in a band: come in and add something. But that doesn't mean you wrote the song." The lyrics focus on street prostitution.