jewel:
(plural: ‘jewels‘)
A person (or thing) that is of talent, good nature or great value — as valuable, attractive and brilliant as an expensive stone, such as a diamond, sapphire, etc.,

a jewel (a female singer considered a jewel among singers, also named ‘Jewel’)
Mike says Lucy is the jewel among the girls and he’s lucky to have her as his girlfriend.
Sandra Jewel is a jewel among the singers who have competed for the title ‘the Jewel of Music’. (The first ‘Jewel’ with a capital ‘J’ is the surname/last name/family name of Sandra; the second ‘jewel’ with a small ‘j’ is the word given in appreciation of her talent and the third ‘Jewel’ with a capital ‘J’ is a part of a title.)
Once in a while we hear about some women being called jewels for being the loveliest and kindest persons.
Our company’s CEO made a huge impact on the entire staff when he said in his annual public speech that all his staff members are priceless jewels who had made the company shine so great!
