U.K. based luxury designer Alexander Amosu created the world’s most expensive BlackBerry crafted in solid 18 carat yellow gold and encrusted with 4,459 (count them!) brilliant cut diamonds for a total of 28.43 carats. It takes over 350 hours for building these. There will only be three of these diamond-encrusted BlackBerrys in the world, where one of them will retail for a whopping $240,000.