Botswana Diamonds will soon begin to drill at its recently discovered Ontevreden diamond project in South Africa, Mining Weekly reports. The Ontevreden kimberlite pipe is close to the Helam diamond mine, owned and operated by Petra Diamonds. According to the same report, Helam “has grades of more than 500 carats per hundred tonnes”.   Botswana … Continue reading BOTSWANA DIAMONDS TO DRILL “EXCITING NEW KIMBERLITE” IN SA