De Beers’ GemFair delivering ‘positive impacts’ to ASM sector in Sierra Leone – David Johnson

GemFair, a pilot project developed by De Beers to create a secure and transparent route to market ethically sourced artisanal and small-scale mined (ASM) diamonds, is already delivering “important positive impacts” in Sierra Leone. Group head...

11 november 2019

Belgian-quality diamond boiling in Dubai from TRIGEM

Born in New York, David Zabinsky is CEO & Co-Founder of TRIGEM, an independent diamond service provider in Dubai. Before TRIGEM, David was Manager at Ras Al Khaimah Economic Zone, where he was responsible for securing North and South American investment...

05 november 2019

Pavel Shelkov: "Our project is an attempt to fit Russia into the global trend and create a new private company in the diamond industry"

At the end of September, Moscow hosted the Second Annual Conference, "Gold and Diamond Mining Companies of Russia and Europe." The audience showed great interest to the presentation made by diamond geologist Pavel Shelkov of Almazy Zapolyarya...

28 october 2019

The team that turns sleeping stones into beautiful polished diamonds

Maxim Zemlyakov is the Director General of ADMS OOO, a company cutting and polishing natural and synthetic diamonds in Oryol. He has been the Director General of Oryol-ALROSA since 2007. Before heading it, he worked as a grinder, cutter, instructor...

21 october 2019

Demand will pick up once the season starts

N Anantha Padmanaban took charge as the Chairman of the All India Gem & Jewellery Domestic Council (GJC) in January 2019. He has immense hopes and confidence in the Indian jewellery sector. His motto is to ‘ensure that after the day’s business...

14 october 2019

MIT engineers develop “blackest black” material to date

28 october 2019

MIT engineers report today that they have cooked up a material that is 10 times blacker than anything that has previously been reported. The material is made from vertically aligned carbon nanotubes, or CNTs — microscopic filaments of carbon, like a fuzzy forest of tiny trees, that the team grew on a surface of chlorine-etched aluminum foil. The foil captures at least 99.995 percent of any incoming light, making it the blackest material on record. 
In connection with this, The MIT Center for Art, Science and Technology and the New York Stock Exchange presented an artwork entitled The Redemption of Vanity created by artist Diemut Strebe in collaboration with MIT scientist Brian Wardle and his laboratory. This artwork will be on display at the New York Stock Exchange until November 25, 2019. Within this project, a 16.78-carat natural yellow diamond worth $ 2 million provided by LJWest was coated using a new procedure of generating carbon nanotubes, the color of which was recently recognized as the blackest of the black palette, and this made the diamond seem to disappear into an invisible void.

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The CNT material may be of practical use, for instance in optical blinders that reduce unwanted glare, to help space telescopes spot orbiting exoplanets.
“Our material is 10 times blacker than anything that’s ever been reported, but I think the blackest black is a constantly moving target. Someone will find a blacker material, and eventually we’ll understand all the underlying mechanisms, and will be able to properly engineer the ultimate black,” Brian Wardle, professor of aeronautics and astronautics at MIT, said. 
The researchers have published their findings in the journal ACS-Applied Materials and Interfaces. 

Alex Shishlo, Editor of the Rough&Polished European Bureau