Big diamond found in Botswana, could be world's third largest
World's Largest Uncut Diamond Fails to Sell at Sotheby's Auction - ABC News
Botswana unearths second huge diamond in weeks, becoming the third largest ever found - ABC News
Botswana says found world's 'third largest' diamond - The Economic Times
Rare 20-carat blue diamond unveiled in Botswana - ABC News
World's second-largest diamond 'found in Botswana' - BBC News
Rare pink diamond gets nearly $35 million at auction
Shine bright: Botswana unveils 'third-largest' diamond ever found - National
Mining in Australia - Wikipedia