I'm a diamond in the rough.
The voice of the cave reveals that only one who is worthy, a diamond in the rough, may enter.
They're a true diamond in the rough, an original work that speaks to you.
Weller was not exactly a diamond in the rough; he was just in the rough.
Their first album was a diamond in the rough.
He was yet a diamond in the rough, and she would not immediately decide till she could better understand his character and prospects, so no formal engagement resulted.
