The estimates global rough diamond production at 131.5 million carats (Mct) in 2014, marginally up from 130.5Mct in 2013. The market for rough diamond production centers around the top eight producing countries - Russia, Botswana, the DRC, Australia, Canada, Zimbabwe, Angola and South Africa which collectively account for 97% of global production. The Argyle, Orapa, Jwaneng, Diavik, Catoca and Nyurbinskaya are some of the major diamond producing mines while Alrosa, De Beers SA, Rio Tinto Plc, Dominion Diamond Corporation and Petra Diamonds are the world's largest diamond mining companies, collectively accounting for 70% of global production.