September 26, 2025

Diamond sale fails in Botswana as buyers refuse to pay up

State trader Okavango Diamond Co. had offered about 1 million carats of rough stones in Thursday’s “closed” tender.

September 24, 2025

Angola joins race for stake in De Beers

Angola seeks a minority stake to create a pan-African ownership model, preventing any single country from dominating De Beers.

September 23, 2025

Botswana seeks to secure control of De Beers by October

President Duma Boko said his government is in talks with partners, including Oman’s sovereign wealth fund, to help finance the deal.

September 19, 2025

Rio Tinto ends diamond era with historic final auction

The centrepieces are six diamond sets representing the the peak of production from the Argyle and Diavik mines.

September 18, 2025

Diamond selling processes are outdated and hurting producers, trader says

A trader at HB Antwerp says the impact on producers could be reduced by doing away with inefficiencies in the industry.

September 12, 2025

Giant Imboo emerald leads Gemfields’ $32M auction comeback

The standout was the 11,685-carat 'Buffalo' emerald, which sold for an estimated $1.9 million, though the price wasn't revealed.

September 4, 2025

Gem Diamonds swings to loss amid industry crisis

The miner recorded a $10.7M goodwill impairment as rough diamond prices drop, supply exceeds demand, and lab-grown stones rise.

September 3, 2025

Brazil probes Anglo’s $500M nickel sale to China’s MMG

The probe stems from a complaint filed by CoreX Holding, a global industrial group and direct competitor in the region.

September 2, 2025

Lab-grown gems are robbing Botswana of its diamond riches

Cheaper lab-made gems are stealing diamond revenue, impacting the wealth of the richest people in sub-Saharan Africa.

August 26, 2025

Gemfields’ massive 11,685-carat ‘buffalo’ emerald set for auction

The gemstone is the largest of several emeralds unearthed at Kagem, already famed for record-breaking finds.