Dr. M’zée Fula Ngenge: How De Beers’ Lightbox undermined natural diamonds

De Beers’ venture into the lab-grown diamond (LGD) market through its subsidiary Lightbox backfired, undermining its century-old luxury positioning around natural diamonds, according to the African Diamond Council (ADC) Chairperson Dr...

19 may 2025

LDB’s David Troostwyk: London still has major role to play in global diamond trade

London Diamond Bourse (LDB) President David Troostwyk has had a varied career in the diamond business. David sat down with Rough&Polished to discuss how his love of diamonds started, his career, the state of the diamond trade in the UK and globally...

12 may 2025

David Johnson: De Beers balancing lab-grown and natural diamonds rarity while pioneering ethical transparency

De Beers has been differentiating its lab-grown diamond brand, Lightbox, by positioning it as an affordable, fashion-focused product. Group spokesperson David Johnson told Rough & Polished that this is in contrast to how De Beers promotes natural diamonds...

28 april 2025

Who will bear the cost? Paul Zimnisky weighs in on U.S. jewellery tariff impact

The United States jewellery industry is facing a complex balancing act as new tariffs on diamonds force wholesalers and retailers to decide whether to absorb costs, negotiate with overseas suppliers (particularly India), or pass them on to consumers...

14 april 2025

Thataitsile Moremedi: South Africa's State Diamond Trader providing market access, exposure for nascent manufacturers

Although it is challenging for previously disadvantaged individuals to enter the diamond industry due to the financial barriers, South Africa's State Diamond Trader is providing nascent entrepreneurs with exposure, market access, and other support...

31 march 2025

Norilsk Nickel organizes winter field study of permafrost for students

06 february 2024

The polar branch of Norilsk Nickel is organizing the second winter field school to research permafrost in Taimyr for students of Russian universities.

A year ago, students from Norilsk's Polar State University went to Zvenigorod in the Moscow region, and this year students from Moscow State University will visit the Arctic zone.

A joint team of students from the Faculty of Geography of Moscow State University and the Department of Civil Engineering of Polar State University conducts research in the field of geocryology and glaciology. Having studied the features of snow redistribution near the buildings of the port city of Dudinka, students began researching residential areas of Norilsk, where the role of mechanized snow removal is very important.

The participants of the winter field school will compare the obtained data with the results of unique studies of snow deposits in the city that have been collected since 1986. As a result, researchers will be able to conclude how the density and volume of snow changes over decades, and assess the extent of permafrost degradation.

Theodor Lisovoy, Editor in Chief of the European bureau, Rough&Polished