David Benderly: PermaScribe seeks to put trust mark on diamond table, not just girdle

In this interview with Rough & Polished’s Mathew Nyaungwa, PhotoScribe Technologies president and chief executive David Benderly explains how PermaScribe differs technically from conventional laser inscription, its potential to strengthen security, and...

31 august 2026

The great reset: Paul Zimnisky on supply catharsis, De Beers' bargain and the case for natural diamonds

The natural diamond industry is in the throes of its most profound reset in a generation. Supply is plunging to its lowest level since 1987 and De Beers—once valued at over $9 billion—is reportedly being sold for as little as $1 billion.
Lab-grown...

10 august 2026

Roman Karakurkchi: Maintaining the highest standards of jewelry craftsmanship

Roman Karakurkchi is the founder of the Roman Karakurkchi jewelry brand and the International Jewellery School that brings together instructors from Russia, the USA, the Netherlands, Spain, Belgium, Italy, and Germany, as well as students from 65 countries...

03 august 2026

Mehul Shah pledges to bring new approach to leading WFDB

Mehul N. Shah, who was elected in July as President of the World Federation of Diamond Bourses at the 41st World Diamond Congress in Singapore, is one of India's best-known diamantaires and a prominent leader in the international diamond industry...

27 july 2026

Charlotte Rose on making history, modernising the London Diamond Bourse, and why finance is the industry’s silent crisis

When Charlotte Rose was elected president of the London Diamond Bourse in June 2026, she didn't just break an 86-year tradition—she became the first woman to lead any diamond bourse globally. In an exclusive interview with Rough & Polished’s Mathew...

20 july 2026

UAV for Arctic conditions developed in Russia

31 january 2024

The Novosibirsk OKB design bureau has developed an aircraft-type unmanned aerial vehicle (UAV), made from low-temperature polymers that have not previously been used in aviation. It is capable of operating at temperatures of minus 60 degrees, TASS quotes the general director of the bureau Konstantin Koryukin as saying.

The UAV can be used to monitor gas pipelines, and in the future, to deliver goods to the Arctic.

“It has to be an all-weather [vehicle]. We used materials such as low-temperature polymers, which had not previously been used in aviation. It can work safely at temperatures of minus 60 degrees. We tested it in the cold, and not only the materials, but also the components are in order. This drone is extraordinary; it can take off from unprepared sites without a special launch complex,” Koryukin noted.

Currently, a pre-production prototype has been developed, production launch is planned for late February - early March.

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