Mbada will partner with state-owned Zimbabwe Mining Development Corporation to "invest heavily" into conglomerate and kimberlitic mining.
The Zimbabwe government is tightening controls in the diamond mining sector in a quest to extract more revenue from mining companies.
A seminar to interrogate issues in Zimbabwe's diamond mining sector is to be held in South Africa.
President Jacob Zuma says the country's mining industry is poised for growth in light of a new R20-billion investment.
A formed Zim politician fingered in a scandal involving $6-million, a Ghanaian and diamonds has denied fault.
The discovery of a 100-carat white diamond worth an estimated $5-million has put London-based Gem Diamonds on its strongest footing in nine months.
Rio Tinto will keep its diamond businesses after failing to find a buyer and deciding not to pursue an initial public offering of the unit.
Cameroon aims to begin production at its first industrial diamond mine by the end of January as part of plans to develop the long-neglected sector.
A UN-mandated watchdog has agreed to end monitoring controls on Zimbabwe's diamond trade, after the government allayed concerns over Marange mines.
A conference on Zimbabwe's diamonds has showed widening divisions in the Kimberley Process, the global diamond certification group.
Cash-strapped Zimbabwe is selling its diamonds to few takers at give-away prices as most foreign buyers shun the isolated country.
Botswana, the world's largest diamond producer by value, is now doing with its diamond mining industry what SA failed to achieve for a century.
Lying in Sierra Leone's mineral-rich eastern belt, the Koidu Holdings diamond mine was once at the heart of the country's decade-long civil war.
In terms of mining, there are no easy options to make the most of local beneficiation.
Diamond producer De Beers expects its South African unit to produce 6.5-million carats in 2011, a million less than last year.
A Zimbabwean activist accused of passing information on diamond-mining violations to the international diamond control body was on Monday denied bail.
Zimbabwe has banned exports of diamonds until the Kimberley Process regulator approves the sale of gems from a field plagued by human rights abuses.
The appointment of a monitor was blocked for four months by disputes between KP and Harare over the names put forward by both sides.
Workers say conditions at South Africa's Cullinan mine have deteriorated as new company targets benefits.
Diamond mining in Sierra Leone is following a global economic trend with miners turning to gold.