The Apple iPhone 3G “King’s Button” is the world’s most expensive iphone at over $2.5 million. Designed by Austrian jeweler Peter Aloisson, it’s made of solid 18 carat yellow gold, white gold and rose gold. It is encrusted with 138 brilliant cut diamonds around the outside. But what really sets this phone apart from all the other blinged out phones in the world is the one of a kind 6.6 carat “King’s Button” diamond on the button. Yep 6.6 carats. On a phone. That is beyond bling- that’s a superbling phone. It probably doesn’t even ring, it blings. Bling bling.