The most expensive iPhone 4s yet have been revealed, and they’re both designed by Stuart Hughes. First, we have the $19,514 diamond version, which features a shell that has been “encrusted with circa 6.5cts of top quality VVS , colour ‘F’ diamonds.” Next, the gold model’s shell is made from pure 24ct. gold and is priced at $2,395. Continue reading for one more picture.