dellenite

例句：

1. 1. The diamond is the most valuablegemstone in the world.
   钻石是世界上最珍贵的宝石。
2. 2. She bought a diamond ring forher wedding day.
   她为婚礼买了一枚钻石戒指。
3. 3. Diamonds are known fortheir durability and brilliance.
   钻石以其耐用性和光泽而闻名。