diamond in the rough noun
plural diamonds in the rough [count] US 1 : a person who has talent or other good qualities but who is not polite, educated, socially skilled, etc. —called also (Brit) rough diamond 2 : something that is in poor condition but that is likely to become valuable with appropriate care or attention
▪ The house is a diamond in the rough, and with some hard work it will be really beautiful.
▪ The house is a diamond in the rough, and with some hard work it will be really beautiful.
