 The world average is roughly US$81 per carat, while Letšeng averaged over US$1,894 per carat for the first six months of 2007.Unusual for Africa, and due to the elevation, temperatures at the mine drop to -20 °C, and snowfalls are common in winter.Letšeng has a tundra climate ("ET", according to the Köppen climate classification), with an average annual precipitation of .