De Beers response to "Rough and polished: a case study of the diamond valuation and pricing system", 28 Aug 2014:…De Beers…refute[s] the findings of the ‘Rough to Polished: a case study of the diamond pricing and valuation system”….The report fails to recognise that…[o]ur economic contribution to South Africa is significant and goes well beyond our tax obligations including R6.1bn in taxes…between 2008-2012.We also invest significantly to develop cutting and polishing industries in South Africa...[which] not only support direct employment in the…industry…(currently c.1,000 people) but also support the supply chain…[W]e are very careful to ensure that we meet our tax obligations…[and] have long supported the principle of tax transparency and have published details of our tax payments for many years.