Falcon Supernova iPhone 6 Pink Diamond - $48.5 million: Customized iPhone 6 with a pink diamond on the back and made of 24-carat gold, making it the world's most expensive smartphone.
Stuart Hughes iPhone 4S Elite Gold - $9.4 million: iPhone 4S with a 24-carat gold bezel, 500 diamonds, and a platinum Apple logo, customized by Stuart Hughes.
Diamond Crypto Smartphone - $1.3 million: Encrypted smartphone made of solid platinum and 50 diamonds, designed by JSC Ancort.
Goldvish Le Million - $1.3 million: Phone made of 18-carat white gold and 120-carat VVS-1 diamonds, recognized by Guinness World Records as the most expensive phone in the world in 2008.
Gresso Luxor Las Vegas Jackpot - $1 million: Phone made of 200-year-old African blackwood and a bezel made of 180 grams of gold, with a navigation key made of a 17-carat diamond.
iPhone 3G Kings Button - $2.5 million: Customized iPhone 3G with a solid 18-carat yellow gold casing, white gold accents, and a home button with a 6.6-carat white diamond, by Peter Aloisson.
Black Diamond VIPN Smartphone - $300,000: Smartphone with a black diamond on the navigation button and a mirror-finished stainless steel body, designed by Jaren Goh.