David Johnson: De Beers charts cautious Angola return amid industry transformation

De Beers is rebuilding its presence in Angola through government partnerships and community engagement, marking a strategic comeback following its difficult exit years ago from the diamond-rich nation. However, De Beers spokesperson David Johnson cautioned...

24 november 2025

Maria Krasnova: Colored gemstones are a serious investment

Maria Krasnova, Executive Director of the renowned company “Samotsvety ot Sokolov” (Gems by Sokolov), spoke to Rough&Polished about the Gemstone project aimed at selling precious stones, as well as about current market trends, new challenges...

17 november 2025

Forging a new legacy: Tshenolo Ntshekang on building a black-owned diamond beneficiation business in South Africa

In an industry historically defined by limited access and foreign dominance, Tshenolo Ntshekang is carving a new path. The founder of Banzi and Karolo Projects, a black-owned diamond beneficiation business, Ntshekang, represents a growing wave of...

03 november 2025

Mahiar Borhanjoo returns to ‘The Heart Of The Diamond Business’

Having started his career in the diamond trade at De Beers in London, Mahiar Borhanjoo returned to the diamond giant last year as Chief Commercial Officer after working for a decade for other diamond companies. Mahiar explains why he returned to De Beers...

27 october 2025

Mubri president Ali Pastorini: You just need to play a transparent game and do everything possible to attract clients

Ali Pastorini, co-owner of the DEL LIMA JEWERLY and president of the Mubri International Association, which unites more than 2,500 wholesalers, retailers, and designers from 18 countries. In this interview with Rough&Polished Ali Pastorini talks about...

20 october 2025

Tertiary begins an exploration of copper in Zambia

12 june 2024

Tertiary Minerals has commenced exploration operations at its Mupala Copper Project in the highly prospective Kabompo Dome of the Northwestern Province in Zambia.

Work is expected to commence this week.

Its immediate focus is on copper-in-soil anomalies identified during the review of historical exploration data.

The Mupala Copper Project is located adjacent to the Anglo American and Arc Minerals joint venture project, where Anglo American has a right to earn a 70% interest through expenditure of $88.5 million, and 12 km west of the Company's Mukai Project.

"We were fortunate to acquire the Mupala licence against stiff competition and we hope that the soil sampling programme at Mupala will confirm the historically identified copper-in-soil anomalies and form a solid base for future exploration activities in that licence,” said company executive chairperson Patrick Cheetham.

"Momentum is now building for our current exploration season. Drilling is in progress at Konkola West with KoBold Metals and Mwashia Resources and we announced last week the consolidation of three additional projects into our new subsidiary, Copernicus Minerals, where drilling plans are also being advanced."

Mathew Nyaungwa, Editor in Chief of the African Bureau, Rough&Polished