Nosiphiwo Mzamo: South Africa’s State Diamond Trader to buy diamonds from other African countries

South Africa’s State Diamond Trader (SDT) is set to buy diamonds from other African countries starting with Botswana. SDT’s chief executive Nosiphiwo Mzamo told Rough & Polished’s Mathew Nyaungwa at the country’s inaugural diamond show, which...

10 february 2025

Edahn Golan: Halo effect from lab-grown diamonds driving high demand for large, 2-carat natural stones in the U.S.

Edahn Golan, owner of the eponymous Edahn Golan Diamond Research and Data, told Rough & Polished's Mathew Nyaungwa in an exclusive interview that their research found a halo effect from lab-grown diamonds. He said the trend among lab-grown diamond...

27 january 2025

Paul Zimnisky: We will see a modest recovery in natural diamond demand and prices in 2025

According to Paul Zimnisky, an independent diamond and jewellery analyst and consultant based in the New York metro area, the natural diamond industry will see a modest recovery in demand and prices this year. Zimnisky said a moderate recovery would...

13 january 2025

African Diamond Council makes traceability its top priority, wants KP to embrace Authentia.io

The African Diamond Council (ADC) has made traceability its foremost priority and has been contributing to a traceability solution called Authentia.io for the last three and a half years, which is now ready to globally satisfy the traceability...

16 december 2024

Gaetano Cavalieri: CIBJO leading the jewelry industry on critical issues

One of the gem and jewellery industry’s most well-known and respected personalities, Dr. Gaetano Cavalieri, has been the president of the World Jewellery Confederation (CIBJO), for the past 23 years. CIBJO is the oldest international organisation...

09 december 2024

Climate in Krasnoyarsk became warmer over the past 30 years

02 april 2024

The Minister of Ecology of the Krasnoyarsk Territory Vladimir Chasovitin published the results of a research held by scientists of the Central Siberian Department of Hydrometeorology and Environmental Monitoring on changes in temperature and wind speed in Krasnoyarsk, Norilsk, Yeniseisk, Achinsk, Kansk and Minusinsk.

"Researchers analyzed the period of 1991-2023 and compared it to the baseline period of 1961-1990. According to weather forecasters, the average air temperature is rising. In the cities studied, it rose by 1.1 - 1.9 degrees Celsius. At the same time, the warming in winters is more intense than in summers," Chasovitin writes.

At the same time, the average wind speed also dropped over the same period from 12% to 33%. This is associated with warming in the Arctic.

The Minister of Ecology also noted that the number of windless periods is also decreasing in the cities of the Krasnoyarsk Territory, 24rus.ru notes.

Alex Shishlo for Rough&Polished