The world's most expensive iPod has gone up for sale at a charity auction in London.

The popular music player was customised with hundreds of diamonds for a dazzling makeover.

Already a must-have item, the bejewelled version was the star of the auction, with an estimated value of £20,000.

The iDiamond shuffle is made of solid 18 karat white and pink gold and kitted out with 430 diamonds.

The one-off piece was created by jeweller, Thomas Heyerdahl, who says the process was painstaking and meticulous as there wouldn't ever be another one.

He said: "It's a special thing, making just one. If we had make this for commercial sale, it would be quite a different thing because then you have to take care of, much more things to make it work commercially."

A carbon-offset eco-holiday to a Himalayan retreat and a trip to a château in the Champagne region of France were also up for grabs at the auction.

© Independent Television News Limited 2008. All rights reserved.