- a. A precious stone that is part of a sovereign's regalia.b. crown jewels The jewels, such as those in a crown or scepter, used ceremonially by a sovereign.
- The most prized asset or possession in a group.
crown jewel - Investment & Finance Definition
A part of a company that is the most attractive or lucrative. Often a company’s crown jewels are the primary reason that another company attempts to take it over. The crown jewels may be a product line, a group of assets, a service, or a trademark.