Diamond in the rough

The phrase "diamond in the rough" refers to someone or something that has potential or talent, but is currently unrecognized or unrefined. It suggests that there is hidden value or beauty that can be developed with time, effort, or attention. The term originated from the idea that a diamond, in its natural state, may appear unimpressive but has the potential to become a polished and valuable gem with proper cutting, shaping, and polishing. Similarly, when describing a person, it means they have exceptional qualities or abilities that may not be immediately apparent.