While we sell carbon fiber iPhone cases, they are nowhere near as expensive as the GnG Designs iPhone 3G / 3GS case. In fact, the GnG Designs case is the most expensive one in the world, costing 77,777 euros, which is about $112,000 at the time of this writing.
The shell of the case consists of 140 grams of 18-carat gold filled with about 200 diamonds. On top of that, the logo has another 400 diamonds. The inside features a twill carbon fiber inlay. The entire shell is just 1mm thick.
If you prefer to spend under $100, check out our carbon fiber iPhone cases
[Source: Born Rich]