How much CO2 is in a Pandora lab-grown diamond? 12.58 kg per carat

Pandora’s cradle-to‑gate carbon footprint study of its lab‑grown diamonds, verified by EY (formely Ernst & Young) under limited assurance, finds that one polished carat carries a footprint of 12.58 kg CO2 equivalent (e). The growing stage...

11 may 2026

Antwerp diamond trade volumes jump 20% in Q1 2026 as structural measures take hold

The Antwerp World Diamond Centre (AWDC) reported a nearly 20% increase in total diamond trading volume for the first quarter of 2026, driven by a 35.7% surge in rough diamond imports.

27 april 2026

‘AI is the engine, diamonds are preserved upside down, copper currently the path to value’ – Botswana Minerals’ Campbell on strategy shift

Botswana Minerals has positioned itself as a data-led, multi-commodity explorer, placing copper at the centre of its growth strategy while retaining diamond assets for future upside, Managing Director James Campbell has told Rough & Polished. In an exclusive...

13 april 2026

Emanuel Vieira Lopes: Angola's new digital mining cadastre to reduce permit times by a third

Angola's new Digital Mining Cadastre (CMA) is on track to reduce average permitting timelines by one-third once fully deployed, according to Emanuel Vieira Lopes, Advisor to the Secretary of State for Mineral Resources. In an interview with...

06 april 2026

Paul Zimnisky warns diamond trade at "crossroads" as geopolitical tensions, pending De Beers sale, and LGDs reshape market

As geopolitical tensions escalate in the Middle East, diamond industry analyst Paul Zimnisky warns that the impact is most acute at trading hubs like Dubai, where flight cancellations and travel fears are keeping buyers away. In a wide-ranging interview...

30 march 2026

BHP eyes large-scale copper exploration in Zambia – report

21 april 2026

Global miner BHP is keen to pursue large-scale copper exploration in Zambia, the country's mines ministry said on Monday, highlighting growing international interest in the central African nation's mineral wealth, according to Reuters.

Zambia, Africa's second-largest copper producer after the Democratic Republic of Congo, aims to more than triple output by 2031 and is stepping up efforts to attract investment.

BHP has largely stayed out of Africa since spinning off South32 in 2015, but is now re-engaging.

The company launched exploration workshops across southern Africa in April.

Campbell McCuaig, BHP's head of global generative exploration, said many remaining large deposits are deeply buried or hidden beneath geological cover, and BHP is deploying advanced methods to detect "mineral systems."

He welcomed Zambia's efforts to expand access to geoscience data.

Mathew Nyaungwa, Editor-In-Chief, Rough & Polished