A British woman has baked the world's most expensive cake which has so many precious gems it is worth £48.5 million.

Debbie Wingham has created a 6ft long replication of a runway that includes edible models of Vogue editor Anna Wintour looking on as a model goes down the catwalk.

It is made up of some 4000 rare stones including a 5.2 carat pink diamond a 6.4 yellow diamond.