VANCOUVER, Dec. 18, 2012 /CNW/ - Rockwell Diamonds Inc. ("Rockwell" or the "Company") (TSX: RDI; JSE: RDI) as part of its operational update, is pleased to announce that the Group increased the volume of gravel processed by 6% to 747,404m3 and diamonds produced increased by 12% to 5,950 carats, despite having to deal with operational challenges and
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