I wish there were fewer art dealers. I wish there were fewer auctions. I wish there were just two auctions a year. It's just too much. And at the end of the day, if you're a dealer and a professional, fine, that's your business, that's all you do. But as an individual, if you're not a dealer and it's not your business, you need time for these things. You need time to study what's happening. You need time to understand the market. You need time to go to a museum. You need time to see a show. You can't go to one every day. It's becoming a trend.

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.

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 think a lot of people are involved in art because of the fashion of art and the conversation. It gives them a certain sophistication, something to speak about. But art is, if it's conceptual, really about understanding the concept. And if it's beautiful, it's about seeing the beauty. It's gone much further than that now. There's too much commercialism attached to art. If the market cracks one day big-time, you'll frighten so many people away who will never come back. Because they don't really feel for art. People who buy art should want it because they love it, they want to enjoy it.

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.

Unfortunately, some of the young talants are becoming fashionable. And anything that's fashionable can become unfashionable. So one has to watch that. And it's very easy today because there are so many events - art fairs, gallery openings, etcetera. In fact, that's another thing that concerns me, the quantity of gallery openings. In my office in London, I get back after a week, and I have 30 invitations. It's too much.

It's the rough diamond that dictates what you can get out of a diamond. You can't say, "I'm going to make this," or, "I'm going to make that." It's nature. Whatever nature gives us, we explore and we build on. We can't create something that is not in the stone, so we take away as many imperfections as we can. Sometimes, you can't take them all away. But mostly, our cut, our polish, the life we put into the stones, the beauty that we bring out is exceptional.