But... Why? Why change the diamond for a fake one?

Ah, that's a nice question professor.

This... I mean, the real diamond is worth a ton of money and has an insurance equally big, it was, in fact, a robbery...

How a robbery?! We are all here!

Besides, we know the diamond was checked before! How is it fake now?

Ahh, that's another good question!

And that one, can be answered by our specialist in jewerly here, right, Miss Celeste?