May 2010 turned out to be the fifth consecutive month when Belgium’s exports of rough and polished diamonds have increased, according to the Antwerp World Diamond Centre. Polished exports in the month rose 4.0 percent to 629,984 carats, and 39.0 percent in value to $920.5 million, as compared to May 2009. In the first five months, polished exports rose 29.3 percent rise in value to $4.26 billion, and 2.3 percent in volume to 2.95 million carats, as compared to the corresponding five months in 2009