What part of speech is jewel?

"Jewel" can be a few different parts of speech, depending on how it's used:

* Noun: This is the most common usage. It refers to a precious stone, often used for jewelry. Example: "She wore a beautiful diamond jewel on her finger."

* Adjective: It can be used to describe something as valuable, precious, or beautiful. Example: "The jewel box contained a collection of rare gems."

* Verb: It can mean to decorate or adorn with jewels. Example: "The crown was jeweled with emeralds and rubies."

So, without context, it's impossible to definitively say which part of speech "jewel" is.