British designer Stuart Hughes is offering a £5m Apple iPhone 4 adorned with 500 individual flawless cut diamonds totalling 100 carats.
Hughes 'pimped' the Apple handset for an Australian businessman.
"It was a fantastic challenge and I am really pleased with the end result - the phones look superb," the Liverpool designer said.
"Phones are so popular at the moment, and this is the ultimate design for one. It was a very exciting project. The diamonds are rare and difficult to source. Stones like that usually have a very long history."
Highes said it was "amazing" that someone is prepared to spend £5m on a phone.
"I doubt it will get used because it is worth so much money," he said. "It would be a disaster if it was ever lost."
The £5m iPhone comes well protected in a granite presentation block. Only two of the handsets will ever be made.
See also: Gilty Couture 14K gold iPod cases