This was the world's most expensive mobile phone (2007). The shimmering handset is encrusted with diamonds and is worth a staggering one million dollars. The pricey phone was on display at the Salon Top Marques exhibition in Monte Carlo, Monaco.
Blue diamond ~ This is one of the rarest gems in the world - a 6.04 carat diamond that is fancy vivid blue color and has internally flawless clarity. The expensive stone was bought by a British jeweler for a record-breaking sum of almost £4 million at a Sotheby's auction in Hong Kong. The selling price makes it the most expensive gemstone in the world, per carat, sold at any auction. The flawless blue diamond fetched £650,000 per carat after intense bidding.