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

A year-round hurricane on Earth is possible - climatologist

17 january 2024

The global warming may result in the appearance of a stable hurricane on Earth, which will circulate all year round, predicts climatologist Alexey Karnaukhov, a leading researcher at the Pushchinsky Center for Biological Research of the Russian Academy of Sciences.

"The bottom line is that with a further increase in temperatures, a stable hurricane may arise, which will circulate all year round on a constant basis, like Jupiter's Great Red Spot, and will move, for example, from the shores of the Sahara to the shores of Florida, cross the American continent in the area of Nicaragua, and further develop in the Pacific Ocean, go to Indonesia, Vietnam, the shores of India," the scientist said on the air of Radio Russia.

Alex Shishlo for Rough&Polished