UK mining giant Anglo American to offload De Beers diamond firm BBC.comAnglo American Plots Breakup After Rejecting $43 Billion BHP Bid The Wall Street JournalExclusive-Anglo American explores De Beers IPO as part of break-up, sources say Yahoo FinanceDiamond giant De Beers faces spin-off amid wider restructuring as Anglo American takeover pressure mounts CNBCAnglo American eyes break-up as it fends off BHP offer Reuters