De Beers Lifts 2026 Diamond Output Guidance to 28 Million Carats After Taking Full Control of Gahcho Kué De Beers reported an 11% year-on-year decline in rough diamond production to 6.8 million carats in the third quarter of 2026, as planned maintenance at its Orapa mine in Botswana and reduced output at Venetia in South Africa weighed on performance. Despite the decline, the diamond producer raised its full-year production guidance to between 25 million and
![]()
