Al: Well, today we're going to show you how the experts work with the world's hardest stone, a diamond.
Tim: That's right. In case you just joined us, all the way from South Africa, we have a guest, expert diamond-cutter... Dirk Brodsky. Dirk comes from a long line of diamond-cutters.
Dirk: Oh, yeah. That's right. In fact, I've brought some diamonds cut by my great-grandfather.
Tim: We're looking forward to seeing your family jewels.
Dirk: Humor is such a tricky thing, isn't it?
Al: All right, well, why don't we show you how diamonds are honed using these machines?
Tim: All right. We'll start off with this little saw. What is this for?
Dirk: This is a rotary diamond saw. We cut away the unusable part of our rough diamond and it gives us perfect cleavage.
Tim: And we all know how important perfect cleavage is.
Dirk: Very tricky.