Price: $310,000

Vertu is now taking orders for the Signature Cobra, designed by French jeweller Boucheron, but you better be quick as only eight are being made. The Cobra will feature one pear-cut diamond, one round white diamond, two emerald eyes and 439 rubies.

Vertu will also be offering a 'cheaper' version, ruby free, at $115,000.

Image: Vertu Signature Cobra