4th Most Expensive Cell Phone in the World. Price: $300,000



Sony Ericsson Black Diamond

Singapore-based industrial designer Jaren Goh has presented this rendering of an ultra stylish high-end Sony Ericsson dubbed Black Diamond, from which the actual company could get some inspiration. Apart from a 4 megapixel camera without flash and no navigation buttons at all, the OLED screen is located behind a polycarbonate layer with "mirror cladding" so you see your face when you want to check mail. The Price of this phone comes from actual state of the art technology instead of a bunch of shiny rocks, but it does not mean that it lacks beautiful looks. Specially the mirror finish gives the phone a sleek, futuristic look. The price of this elegant set is $300,000.