If the regular iPhone cases just don’t do it for you, then maybe you should check out this new iPhone case from GnG.

This case contains 140 grams of 18-carat gold as well as 200 diamonds and a logo which features 400 extra diamonds on it’s own. The logo can further be customized.

The shell is thin and only 1mm inside with a special high-tech carbon fiber inlay for high dimensional stability and security.

British stationers Smythson have created a unique case for the iPhone designed to complement their diaries and other items.

Part of the Smythson Autumn Winter 2008 Raspberry Collection, the case is made in luxurious Raspberry leather and lined in leather. It comes presented in a Nile blue tissue-lined gift box.

The Smythson iPhone case fits both the first generation iPhone and the new iPhone 3G, it is available exclusively from Smythson stores worldwide. Price: £80.00 ($ 120)

There are lots of cases made for new iPhone 3G and one of the latest one comes from Christian Dior.

Named “Dior Homme iPhone Holder”, from Dior Homme’s exclusive Black Tie collection, the case is made from calf leather and it’s all painted in black, featuring a discreet Dior logo on the inside.

Unlike other cases, this one is actually more like a pouch and it allows you to completely hide your iPhone inside it.

Part of the GLK collection, the new iPhone pouch is crafted from the finest quality white nappa leather with crisp cut-out transparent GLK lettering– a characteristic feature of the entire GLK Collection – that has been lavishly trimmed with CRYSTALLIZED™ Swarovski Elements.

The effect is eye-catching: when the iPhone is actually inserted and the display is activated, the refraction of light through the fine-cut crystals ensures that the GLK lettering shimmers in an attractive play of colours. Inside the GLK iPhone® pouch is lined with a special magenta-coloured fabric.

Mercedes-Benz Accessories GmbH has been working closely with the Austrian crystal specialist Swarovski for some time now. The strictly limited edition of 40 exclusive, glittering iPhone® pouches will be exclusively raffled for invited guests of Mercedes-Benz in the Lounge.

Only 40 are set for immediate production, with each set to be raffled for invited guests of Mercedes-Benz Fashion Week Berlin in the Lounge. But not to worry, the iPhone pouch will certainly make its official debut as part of the Mercedes GLK Collection come October. Though, for drivers of Mercedes-Benz passenger cars, the GLK-Class offers a convenient and secure connection for the iPhone on board with the usual multifunction steering wheel control.

One million of Iphone 3G have already been sold since last Friday : if you are among the lucky customers you might want to consider one of these form-fitting Miniot iWood cases made of the finest endangered woods ^_^

Miniot’s form-fitting iWood cases are made from natural hardwoods including oak, cherry, mahogany, walnut and padouk and provides full enclosure for protection - except for a thin sheet of polycarbonate over the screen that allows the phone to be used.

Miniot has already been shipping iPhone and iPod Touch cases for a while now. Expect the iWood iPhone 3G version to be available for purchase in the latter part of July.

Parisian trunk makers Pinel & Pinel have created this the ultimate traveling case for music lovers who like to listen to their iPod’s whilst traveling.

Made of wood and covered with luxurious durable leather, the iCase comes in 51 colors with built-in pockets to hold your accessories, and integrated Altec Lansing wall surrounding speakers with a remote control.

The iCase comes with iPod video, but it is compatible with all iPod models (as well as the brand new Apple iPhone 3G.