I went to an auction in the late '70s and bought a small Renoir. People said, "Why did you buy a Renoir that size?" I said, "I can put it in the safe with my diamonds." And that was a true story. I bought it to put it in the safe.

You learn about yourself when you're collecting art. You learn what you're capable of. After all, we're not speaking about pennies-we're speaking about vast sums of money. I do it on my own back without advice, so I've got the confidence to do it.

I always believed, right from the beginning, if you're going to do something, do it the best. If you're going to work, you want to enjoy it-make a product that you really enjoy selling or owning.

I can't draw. I can't paint. But what I can do is tell somebody else what to do. I'm a creator. I can tell an artist what to do. I can be behind the artist. I have the eye, so I can move things around. I can put stones together. I can match them.

I was always a little bit of a collector and a hoarder. And whenever I got involved in anything, whatever it was - even when I was a kid and I collected cigarette cards - I really got into it and had the most. So when it came to paintings, once I got the bug, I always wanted to buy something. But I really knew nothing about art.

The Graff Hallucination is a sculptural masterpiece; a celebration of the miracle of coloured diamonds. For many years I have thought about creating a truly remarkable watch that illustrates our all-consuming passion for diamonds. The Hallucination has made my diamond dream a reality.

Whatever nature gives us, we explore & we build on.