African-focused explorer Botswana Diamonds on Tuesday said it had signed a memorandum of understanding with fellow AIM-quoted miner Vast Resources.
Exploration and development company Botswana Diamonds has begun a drilling programme at the Ontevreden kimberlite pipe in South Africa, the company said on Monday.
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Botswana Diamonds said a scoping study of its Thorny River project had led to an updated estimate of the diamond value range of $120-$220 per carat.
AIM-listed Botswana Diamonds has raised £500,000 through the placing of new ordinary shares at 1p each to help fund ongoing diamond exploration in South Africa and Botswana and for additional working capital purposes.
Botswana Diamonds announced on Tuesday that work is commencing on the first half Alrosa/Botswana joint venture - Sunland Minerals - in Botswana.
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Results from survey work conducted at Botswana Diamond's Free State project, located between Bloemfontein and Kimberley, had indicated that sizes of kimberlites there ranged from 0.3 hectares to 1.15 hectares, the board of Botswana Diamonds announced on Friday.
Botswana Diamonds successfully raised fresh funding for its projects, including from various of its directors and their families.
Botswana Diamonds updated the market on the Vutomi prospect at Frischgewaagt on Tuesday, explaining that following the inclusion of the results of the bulk sample and an update to the estimation analysis technique, a refined estimate for the grade at the FGT joint venture had been established.
Diamond explorer Botswana Diamonds announced the award of six new prospecting licenses in Botswana to Sunland Minerals on Tuesday -the company's joint venture with Alrosa.
Diamond explorer Botswana Diamonds said on Thursday it completed the first phase of drilling at the flagship Vutomi project in Frischgewaagt, 280km north of Johannesburg.
AIM-listed miner Botswana Diamonds has raised £525,000 in order to fund drilling and exploration work at its South Africa and Botswana sites.
Botswana Diamonds announced on Monday that it has entered into an option and earn-in agreement with Vutomi Mining and Razorbill Properties 12 - collectively known as Vutomi - a private diamond exploration and development firm in South Africa.
Botswana Diamonds posted its preliminary results for the year to 30 June on Friday - another year of nil revenue, though it did manage to narrow its losses.
Botswana Diamonds announced on Tuesday that a diamond has been found in the early stage of the re-analysis by Alrosa specialists of concentrate from large diameter drilling on kimberlite pipe AK21 on PL 260.
AIM-listed explorer Botswana Diamonds has started a drill programme at its mine in the Kalahari Desert and is "cautiously optimistic" of finding kimberlites.
Shares in AIM-listed miner Botswana Diamonds fell more than 12% on Tuesday, as the company announced that drilling has started on the kimberlite pipe.
Botswana Diamonds updated the market on its ongoing diamond exploration campaign in Botswana on Friday.
Botswana Diamonds said on Monday that it will shortly begin a large diameter drilling (LDD) programme on one of its licenses in the Gope region to establish the grade and quality of diamonds it knows to be present.