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

Ice-free periods to be expected in the Arctic - scientists

12 march 2024

In the next couple of years, there may be periods when the sea ice is almost absent in the Arctic, according to a prediction made by scientists from the University of Colorado.

The ice-free period is a situation where the ice in the Arctic will occupy less than a million square kilometers.

At the same time, researchers predict that in the middle of the XXI century, the Arctic will be free from floating ice for a whole month every year, most likely in September. If the rate of warming increases, then the Arctic seas may stop freezing even in winter.

The disappearance of sea ice has a detrimental effect on Arctic animals such as seals and polar bears, and put them on the verge of extinction.

In addition, ocean warming can lead to fish migrating from warmer seas to the waters of the Arctic Ocean, and it is difficult to predict how this will affect the ecosystem, ttelegraf.ru notes.

Alex Shishlo for Rough&Polished