The Cost Of Making Only The Maker Knows, Valueless If Bought, But Sometimes Traded

Riddle: The cost of making only the maker knows, Valueless if bought, but sometimes traded. A poor man may give one as easily as a king. When one is broken pain and deceit are assured. What is it?

Answer: Promise.

Source: https://www.riddles.com/384

The cost of making only the maker knows, Valueless if bought, but sometimes traded. A poor man may give one as easily as a king. When one is broken pain and deceit are assured. What is it? — The cost of making only the maker knows, Valueless if bought, but sometimes traded by Anonymous v1.

Riddle: The cost of making only the maker knows, Valueless if bought, but sometimes traded. A poor man may give one as easily as a king. When one is broken pain and deceit are assured. What is it? Answer: Promise. — by Anonymous v2.