10:03 AM EST - Harry Winston Diamond Corporation : reported that in the first calendar quarter of 2011, its Diavik Mine produced 1.35 million carats from 0.5 million tonnes of ore processed. Ore processed and diamonds recovered in the 2011 first quarter were lower than the calendar fourth quarter 2010 due to maintenance at the processing plant and a shift in ore mix from the higher grade A-154 South underground to the lower grade A-154 North underground and A-418 open pit. Harry Winston Diamond Corporation
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