Here's some exciting news for all you Princess Diana fans - a slice of her and Prince Charles' 34-year-old royal wedding cake will be up for auction tomorrow.

But owning this slice of royal history won't come cheap, with the bids starting at US$1,100!

The delicious and beautiful dessert is a classic British fruitcake with cream cheese frosting baked by David Avery, the then head baker of the Naval Armed Forces. The newlyweds actually had an assortment of 27 different cakes at their wedding, but this slice was from the official wedding cake that was served at an intimate wedding breakfast reception at Buckingham Palace following the ceremony at St. Paul’s Cathedral. Each guest received a boxed slice of cake to commemorate the occasion.

It took David a whopping 14 weeks to make the five-tier cake, and he even crafted a backup cake in case something went horribly awry with the first one.

The cake slice is being sold by Nate D. Sanders Auctions, and comes packaged in the original white and silver presentation box that features the Prince of Wales's feathers and reads "CD, BUCKINGHAM PALACE, 29TH JULY 1981". The original gift card is also included, with the message "With best wishes from their Royal Highnesses the Prince & Princess of Wales". The entire piece is wrapped in the original wax paper and doilies, and is described on the auction house's website as in "very good condition".

Get more information and bid on the slice of cake starting Dec. 17 at natedsanders.com.