jewel
//ˈdʒuːəl//
Noun
jewelsPlural
1
A precious stone, especially when cut and polished or engraved for use in jewelry
The crown was decorated with precious jewels.
2
A piece of jewelry containing a precious stone or stones
She wore a beautiful jewel on her finger.
3
A person or thing that is highly valued or treasured
She is the jewel of our team.
4
A bearing or other mechanical part made of a hard material such as ruby or sapphire, used in watches and other precision instruments
This watch has 17 jewels for smooth and accurate movement.