gem

The crown was adorned with rare gems, including emeralds and sapphires.

(Chinese) 皇冠上装饰着稀有的宝石，包括祖母绿和蓝宝石。

A skilled jeweler can identify a fake gem just by looking at its internal structure.

(Chinese) 熟练的珠宝商仅通过观察内部结构就能识别出假宝石。

This hidden little cafe is a real gem that most tourists never find.

(Chinese) 这家隐藏的小咖啡馆真是一个瑰宝，大多数游客都找不到。

Our new assistant is an absolute gem; she's efficient and always cheerful.

(Chinese) 我们的新助手简直是个宝贝；她办事效率高且总是开开心心的。