14/08/2014 16:36 BST | Updated 22/05/2015 10:12 BST

Slice Of Duchess Kate's Royal Wedding Cake Sells For £2,581

One royal super fan has very expensive taste after buying a slice (yes, one slice) of the royal wedding cake for $4,160 (£2,581) at auction.

A rep for Julien's Auctions told E! News the piece of cake had gone under the hammer at the 2013 Icons and Idols: Hollywood Auction on 9 and 10 November, but did not disclose the identity of the buyer.

The eight-tiered £20,000 extravaganza for Kate Middleton and Prince William's April 2011 wedding was created by celebrity cake-maker Fiona Cairns, who, according to Entertainment Wise, had sleepless nights over it. She said: "It was the most stressful thing I've ever done. I had sleepless nights beforehand because when you've done this for as long as I have, you know what can go wrong.

"I have to confess, I had a little weep while we were setting up in Buckingham Palace."

But, she added: "William and Kate said it had surpassed their expectations, which was wonderful."

The fruit cake was a metre high, and was decorated with 900 intricate flowers.

Kate and William preserved the top three tiers of the cake, and even served some at Prince George's recent christening.

In an interview with Hello! Magazine, Fiona said: "We were always told that the cake would be saved for the future.

"It's always been a tradition and that's why the cake was fruitcake, because after 30 months it's even more delicious."

Fancy a spot of nostalgia? Flick through the royal wedding pics here. Aww: