Sophie Anderton

British supermodel Sophie Anderton wowed a star-studded crowd today as she modelled the world's most expensive bikini in Scott Henshall's London Fashion Week Show.

Anderton, modelling at the old Saatchi Gallery in London, wore a jewel encrusted creation worth STG2 million ($A5.12 million).

Among those watching the high profile show were singer Samantha Mumba, Big Brovaz and It girl Tamara Beckwith. Georgina Ahern, daughter of the Irish Taoiseach, also took to the catwalk watched by her husband Nicky Byrne from Westlife.