How much would you pay to own a slice of history? Now may well be the time to put your money where your mouth is.

Rex Features

A slice of the Duke and Duchess of Cambridge's wedding cake is due to go on sale at a private auction this December in Beverly Hills, California.

THE ROYAL WEDDING IN PICTURES

The real focus of the auction will be a number of dresses worn by the late Princess Diana, seventeen years after the icon herself auction the items off for charity.

Whilst the dresses - many of which were designed by couturier and bridal designer Catherine Walker - are expected to sell for as much as £80,000 each, the slice of cake from Prince William and Kate Middleton's 2011 wedding is believed to fetch between £600 and £1,200.

HOW TO GET THE ICONIC BRIDAL LOOK 

The famous confectionary, baked by Fiona Cairns, is being sold in its commemorative tin by Julien's Auction House in Beverly Hills, California.

Also in the auction: a blank invitation to the royal wedding, printed on Queen Elizabeth II's Buckingham Palace Stationery. 

ROYAL WEDDINGS THROUGHOUT TIME