科依诺尔钻石是英国王室珠宝中最著名的珍宝之一。

The ___Kohinoor is one of the most famous treasures in the British royal jewels.

这幅画是他收藏中的科依诺尔钻石，价值连城且精美绝伦。

This painting is the ___Kohinoor of his collection, priceless and exquisite.