The company, a unit of Anglo American Plc, mined 33.5 million carats in 2017. That’s a 22 percent jump from a year earlier, beating its own target. Production was boosted by its new Gahcho Kue mine in Canada and better market conditions.
Still, it hasn’t necessarily been a bumper year for gems. Diamond sales at De Beers totaled $5.3 billion last year, compared with $5.6 billion in 2016, even though production was higher. That’s because the average selling price fell 13 percent last year to $162 a carat.
De Beers sold more lower-quality stones in India in 2017, a rebound from the previous year, when demonetization cut financing for gem cutters and polishers. The Gahcho Kue mine is also churning out lower-value diamonds.
Story by Thomas Biesheuvel.