De Beers Rough Sales Triple in Q3

De Beers sold $700m worth of rough diamonds across its two sights in the three months to 30 September – more than tripling the $213m recorded during the same period last year.

In the third quarter of 2024, the company held only one sight, having cancelled the August session due to weak demand.

During the Q3 2025 sights, specific assortments were offered at discounted prices. De Beers no longer provides sight by sight updates.

It noted that trading conditions “continued to be challenging,” although consumer demand for natural diamond jewelry remained broadly stable, particularly in the US.

The company said progress seen in the first half of 2025 was hindered by newly imposed US tariffs on diamond imports from India, according to its production report published on 28 October.

However, it welcomed the recent exemption granted for natural diamond imports from countries participating in “aligned partner” trade agreements, announced last month.

Meanwhile, quarterly production increased year-on-year by 38 per cent, to 7.7m carats, although it is down 5 per cent for the year to date (17.9m carats).

Production guidance for 2025 is unchanged at 20 to 23m carats.

Source: IDEX

De Beers Group Managed Operations

The global supply of natural diamonds has already peaked, according to Moses Madondo, CEO of De Beers Group Managed Operations. Speaking at the Joburg Indaba, a major mining and resources conference in South Africa, he explained that production is on the decline, with several mine closures on the horizon and no significant new discoveries in sight.

Madondo highlighted that this limited supply could push diamond prices higher. “Since the turn of the century, we’ve only seen one major commercial discovery, the Luele mine in Angola, where we aim to start production by the 2030s. But on a broader scale, global diamond production is set to decline,” he said. This trend, while concerning from a supply perspective, offers the potential for price growth.

In the short term, Madondo expects production to dip, but he anticipates a recovery after 2025, driven by the Luele mine ramping up and South Africa’s Venetia mine shifting to underground operations. However, the looming closure of Canada’s Diavik mine in 2026 and the shutdown of several mines in Russia will further tighten supply.