sapphire

她的嗓音如同蓝宝石般珍贵，是我们合唱团的瑰宝。

Her voice is the ___sapphire of our choir.

这枚戒指镶嵌着一颗美丽的蓝宝石。

The ring is set with a beautiful ___sapphire.

她的礼服是一种华丽的蓝宝石色。

Her dress was a stunning shade of ___sapphire.