This iPhone 4S by Stuart Hughes costs £20,995.00. As per the description on his site, "the whole surrounding frame is encrusted with 7.8 ct VVS1 Diamonds. The solid Platinum rear section also is home to a solid Platinum Apple logo with 0.53 ct Diamonds."

Russian tech tailors Gresso embed African Blackwood, Swarovski crystals, and an 18-karat gold Apple logo onto the iPhone 4 for a mere $5,000. Want an inlaid black diamond on yours? It'll set you back $10,000.

This "Billionaire Toys" edition iPhone 4S is fully embellished in 24-karat gold. No surprise that it's also designed by Stuart Hughes, exclusively for Goldstriker International. Pick one up for £3,795.00.

This limited edition Titanium Cover for iPhone 4 by Snow Peak seems downright modest compared to some of the other accessories here. But at $119.95, and made from less material than an Incipio Feather case, it isn't cheap either.

Just when you thought we were keeping it real. This iPhone 4 Swarovski crystal case designed by Petria Kwon for Crystograph comes in several patterns. This Lover's edition, pictured, costs $1,490. The simpler Golden Stripe and Ice editions are only $990.

These luxurious but relatively inexpensive cases for iPhone 4/4S by Calypso are hand-made of Italian leather stretched around a titanium frame. Pick one up for $119.

This protective sleeve by Louis Vuitton isn't made of gold, diamonds, crystal, titanium, or any other precious material, but it still costs $290.

Decide how luxurious you want to go with your iPhone, with custom plating at Computer Choppers. We're not sure how much the iPhone upgrades are (they're made to order), with with 24-karat gold, platinum, and diamonds among the options, they sure can't be cheap.

These ornate cases for iPhone 4 designed by Swiss watchmaker Franck Muller will set you back $1,270--that is, if they're still available. Only 500 of each model were made.

These luxury cases from Exovault come in a variety of finishes and prices ($85-$400), but all turn your iPhone into works of manly art.