jewel

柯林斯詞典

1. N-COUNT A jewel is a precious stone used to decorate valuable things that you wear, such as rings or necklaces. 寶石
...a golden box containing precious jewels. …一個裝著貴重寶石的金盒子。
2. N-COUNT If you describe something or someone as a jewel, you mean that they are better, more beautiful, or more special than other similar things or than other people. 寶貝 (指寶貴的物或難能可貴的人)
...a small jewel of a theatre. …劇場的一個小寶貝。
3. PHRASE If you refer to an achievement or thing as the jewel in someone's crown, you mean that it is considered to be their greatest achievement or the thing they can be most proud of. 最耀眼的成就; 最得意之物
His achievement is astonishing and this book is the jewel in his crown. 他成就斐然，這本書是他的最得意之作。

The diamond thief double-crossed his partners and gave them only worthless fake jewels.
The manuscript is bound in gold and silver and encrusted with jewels.
He said the jewels were worthless fakes .
The ring is set with one large jewel.
India was known as the jewel in the crown of the British empire .