The deal is necessary for the Debswana Mining Company, jointly held by De Beers and the Botswana government, as it provides the country with around two-thirds of its foreign exchange.
After closing a C$50 million alternative diamond sale deal in June with Dunebridge Worldwide, company is proposing to double the value of the sales agreement to C$100 million.
The country's High Court interim order affects the assets of Octea, a subsidiary of BSGR, and is linked to a lawsuit over alleged environmental damage.