Perhaps you've heard of it? You know, dealers in exquisite jewellery, high-end timepieces and leather goods. Yes, that Cartier. This link in the golden chain of boutiques is just the same as its counterparts in terms of the assurance of quality, service and (let's face it) stratospheric prices that its name implies. Still, if you have the cash to splash, this is undoubtedly one of the chicest places to find out what you'd look like encrusted in diamonds.