Orion and Blackstone pay up to $450 million for prepaid and streamed gold and silver from Vancouver company's Fruta del Norte project in South America.
The rock, a 5.36-carat green gem quality octahedron rough diamond, was unearthed at the company's Krone-Endora project, located next to the world’s third largest diamond mine.
Western Australia may ask Rio Tinto Group and BHP Billiton Ltd. to pay potentially billions of dollars to end a mining rent tax to help patch a budget decimated by lower commodity prices.