What is the word for jewel in all languages?

There is no single word for "jewel" that exists in all languages. Languages have their own unique words and expressions for this concept.

Here are some examples:

* English: Jewel

* French: Bijou

* Spanish: Joya

* German: Juwel

* Italian: Gioiello

* Japanese: 宝石 (hōseki)

* Chinese: 宝石 (bǎoshí)

* Arabic: جوهرة (jawhara)

* Hindi: रत्न (ratna)

* Russian: Драгоценность (dragotsennost')

As you can see, the words for "jewel" vary greatly across languages.