Valery Budny: There is no strategy and legislation in Russia enabling the full cycle processing of precious raw materials within the country

Valery Budny, Head of the Jewelry Russia program and CEO of the JUNWEX media holding, told Rough&Polished about the results of the meeting and pressing issues in the precious metals and precious stones (PMPS) and the jewelry sectors.


Paul Zimnisky: Natural diamonds face the risk of eroding their appeal if constantly discounted

New York-based independent diamond and jewellery analyst and consultant Paul Zimnisky told Rough & Polished’s Mathew Nyaungwa in an exclusive interview that the industry should do away with discounts. He said the industry should treat natural diamonds...

01 april 2024

Edahn Golan: Lab-grown diamond prices to continue declining

In an exclusive interview with Rough&Polished's Mathew Nyaungwa, Edahn Golan, proprietor of the eponymous Edahn Golan Diamond Research and Data, predicted that the prices of lab-grown diamonds would continue to decline, especially at the retail and...

25 march 2024

ADPA’s Ellah Muchemwa: G7 restrictions to bring extra costs from diamond mining to retail

The African Diamond Producers Association (ADPA), which has openly registered its disdain for the G7’s rough diamond trade restrictions, is of the opinion that the move will bring extra costs on all stages, from mining to retail. ADPA executive...

18 march 2024

Eduard Gorodetsky: Currently we see high demand for synthetic diamonds for use in technology segment rather than in jewelry

Director General of the Advanced Synthetic Research Center Eduard Gorodetsky told Rough&Polished about the current situation at the company, new exclusive technologies in the synthesis and production of lab-grown crystals, as well as the Research Center’s...

11 march 2024

Forest fires accelerate the accumulation of radioactive lead in Arctic seas

15 march 2024

Russian scientists have found out that recent episodes of accelerated accumulation of radioactive lead-210 atoms in bottom sediments in the Laptev Sea are associated with massive forest fires that have occurred in Siberia, Yakutia and the Far East in the last fifty years, the press service of the Russian Science Foundation reports.

"The increase in radioactivity of marine sediments in certain periods is due to forest fires in Siberia, Yakutia and the Far East. Mosses, lichens and peat are powerful accumulators of radioactive isotopes of lead. During combustion, this element is released into the atmosphere of the Northern Hemisphere, and then enters the sea, which causes fluctuations in the activity of lead in bottom sediments," explained Valery Rusakov, a leading researcher at the Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences.

Rusakov and his colleagues came to this conclusion by studying which natural factors influence the rate of accumulation of unstable lead-210 in soil sediments at the bottom of the seas.

This short-lived isotope of lead with a half-life of about 22 years is used by geologists to determine the age of sediments, their accumulation rate and other parameters reflecting the history of their formation, writes.

Alex Shishlo for Rough&Polished