Theo Fennell has designs to be the Queen's new royal jeweller With Sir Elton John, David Beckham and Amanda Holden among his clients, Theo Fennell has a "blingy" reputation in certain quarters. Still, I hear that the boss of the eponymous store is a "contender" to take over from Harry Collins as the Queen's Jeweller. "Of course, it would be thrilling if that opportunity did arise and I can't think of anything more wonderful," Fennell tells me when I broach the subject. It's the ultimate job for a jeweller. In what appears to be an unfortunate reference to Sir Elton, among others, he joshes: "You'd think I already have enough queens as clients ..." The Queen's jeweller is charged with keeping the Crown Jewels and all the regalia held in the Tower of London, as well as the monarch's personal jewellery collection, in good order. The holder of the royal warrant is appointed by Buckingham Palace and does not apply. Collins, a relatively obscure High Street jeweller in Kent prior to his appointment, held it for barely four years before he announced his plan to retire this summer. The position was previously taken by Garrard of Mayfair for 164 years. Fennell adds that he would want to fulfil the role properly. I'd like to get to make a crown. It's the best bit, but they're not made or commissioned very often and it would be sad to do the role and miss out on that - yes, that would be the clincher. Fennell is keeping his skills honed by having lately designed a sparkling limited edition horseshoe necklace to mark the first event of the Diamond Jubilee celebrations in June, the Investec Derby Festival. Incidentally, I still have a bill of sale from Fennell's Chelsea shop signed by Jane Andrews, who was once the dresser to the Duchess of York. A matter of days after she completed the paperwork, Andrews clubbed her boyfriend, Thomas Cressman, unconscious with a cricket bat before stabbing him to death.