Vertu brand is considered to be one of the most expensive mobile phone handsets in the market. Vertu is a subsidery brand of Nokia which is a finnish company. The handsets of Vertu are usually either gold platted or both gold platted with original diamonds on it. Expensive stones are used in making of the sets including, Diamonds, Rubies, Sapphire, etc. and also leather is used for their casings. All the handsets are hand-made. The most expensive handset of Vertu was called Vertu Signature Cobra which costed US$310,000 and the regular handset is called Signature Diamond which costs around US$88,000.