Newmont Goldcorp is now the world’s largest gold producer by market value, output and reserves, as well as the only bullion producer listed on the S&P 500 Index.
The find is the third Type II D-colour gem-quality diamond weighing more than 100 carats recovered since March and the fourth such rock discovered in the current financial year.
Niron Metals, an investment vehicle co-founded and headed by Davis, has struck a deal with Liberia allowing it to use a rail and port to export iron ore from Guinea's Zogota iron ore deposit.
The company, South Africa's largest gold producer, has run up losses of about 1.6 billion rand ($114 million) and about 110,000 ounces of missed gold output because of the labour action.
Botswana's state-run Okavango Diamond Company has unveiled what is believed to be the largest blue diamond ever discovered in the southern African country.
Opponents to mining projects in South Africa are often harassed, threatened and sometimes even killed, according to a report by a group of human rights advocates including Human Rights Watch.
The Canadian miner's second-largest investor, Waterton Global Resource Management, has filed a lawsuit against the base metals producer in a bid to constrain its ability to solicit proxies.