THE WORLD'S MOST EXPENSIVE MOBILE PHONE-- $9 MIL

A British designer has created the world's most expensive cell phone.... at a price of $9 million.

Stuart Hughes designed the diamond encrusted Apple iPhone 4 which is covered in more than 500 individual diamonds totaling 100 carats.

And it also comes with two interchangeable diamonds that fit over the 'home' button.

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