Today’s idiom 55: the jewel in the crown
Meaning: If something is the jewel in the crown, it’s part of a group or set of similar things, and it’s the best of them all.
- Sydney’s Opera House is the jewel in the crown of modern Australian architecture.
- Dudley has many companies, but he regards his cable TV channel “World of the Arts” as the jewel in the crown of his business empire.
Origin: Probably related to the fact that the most valuable part of many crowns is a large jewel.
The answer is: a