LONDON (AP) A royal fan has bought a slice of Prince Charles and Princess Dianas wedding cake for 1,850 pounds ($2,565) at auction, more than 40 years after the couple tied the knot.

The large piece of cake icing and marzipan base features a detailed, sugared design of the royal coat of arms in gold, red, blue and silver. It was given to Moya Smith, a royal staffer, who preserved it with cling film and dated it July 29, 1981.

After a flurry of bidding from across the world the cake piece was sold Wednesday to buyer Gerry Layton for several times over its estimated price of 300 to 500 pounds.

Layton, who described himself as a monarchist, said he would add the cake piece to his collection and benefit charities.