It must be a tough life having a few million dollars burning a hole in your pocket that you just need to spend without reason. Enter the world's most expensive phone, a $3.15 million dollar iPhone 3GS Supreme Rose by Stuart Hughes. What does all that cash buy you? How about a platinum bezel with 130 individual .75ct flawless diamonds, as well as the solid 18K rose gold casing that houses the iPhone 3GS. This one takes the top shelf over the previous iPhone 3GS Supreme, which is now valued at $3.12 million and has a solid 22K gold casing and 136 diamonds.