CANADA STOCKS-TSX slips to 3-month low as U.S. data drags

* TSX falls 47.04 points, or 0.38 percent, to 12,375.08 * Six of 10 main sectors decline * Dominion Diamond climbs as quarterly sales rise * SNC-Lavalin down as company says chairman to retire By John Tilak TORONTO, April 4 (Reuters) - Canada's main stock index fell to its lowest in more than three months on Thursday, led by declines in energy and financial shares, as weak U.S. jobless claims numbers stoked worries about the recovery in the world's biggest economy. Inves