Did you ever see a diamond in my possession?

I glanced down to see a diamond glinting in the sun on Leonie's ring finger.

Have you ever seen a diamond leave a scratch on the air?

Personally, that line in Royals about having never seen a diamond in the flesh has always annoyed me.

At sight of Dorothy he stopped abruptly, confounded, as a man who sees a diamond in a dust-heap.

Immediately under the handle, and above the space given to the Sun, are seen a Diamond and a Horseshoe.

Long ago, before I had ever seen a diamond, I read about them and I tried to imagine what they would be like.

"I think I see a diamond," reported Libbie.

"But," she added, gayly, "I shall never see a diamond crescent after this without asking the owner to allow me to examine it.