Platinum’s rare nature gives it additional value and appeal

Huw Daniel is the CEO of Platinum Guild International, overseeing market development activities in China, Japan, India and the USA, on behalf of the platinum producers of South Africa. Before taking up this role in 2015, Huw ran PGI USA for 12 years...

13 september 2021

Marco Carniello: We want to continue to be the engine boosting the jewellery industry

Italian Exhibition Group (IEG) is a leader in Italy in the organisation of trade fairs and one of the main operators in the trade fair and conference sector at European level, with structures in Rimini and Vicenza, as well as further sites in...

06 september 2021

There is a significant need for smart and technological financial solutions in the diamond industry

MDPS, the Israeli start-up Fintech company from the Mazalit Group is gearing up to enter the diamond industry soon. Zeev Maimon, the CEO of MDPS is also the Founder / CEO of MAZALIT, a B2B payment platform designed and dedicated to the global diamond...

30 august 2021

The future for synthetics lies in that it has become possible to grow a stone you want and make what you want out of it

Alex Popov, President of the Moscow Diamond Exchange and head of the Âme jewelry brand, which uses lab-grown diamonds to produce jewelry, sat for an interview with Rough&Polished sharing his views on the coexistence of natural and man-made diamonds in...

23 august 2021

De Beers’ GemFair ropes in more than 160 Sierra Leone artisanal miners

De Beers inaugurated its GemFair pilot programme in Sierra Leone’s Kono District with 14-member mine sites in 2018 to create a secure route to market for ethically sourced artisanal and small-scale diamonds. GemFair programme manager Ruby Stocklin-Weinberg...

16 august 2021

Scientists have created a material nearly as hard as diamond

01 october 2019

Scientists from Russia, Germany and Sweden createв the hardest material after diamond, TASS reported with the reference to the press service of the NUST MISIS. According to the scientists who created this material, it does not decompose when pressure and temperature drop.
“Usually materials modified at ultrahigh pressures are not able to retain their properties after extraction from the diamond anvil, but in this case, fellowing experimenters were successful,” the agency quoted Igor Abrikosov from MISIS, one of the authors of the work. “We modeled it on a supercomputer. The calculation results coincided with experimental data and explained the unusual properties of the new material.»
Scientists obtained superhard material by heating the rhenium in a diamond anvil to 1,700 ° C, then compressing it to 900 thousand atmospheres and passing nitrogen through it. After deriving the structure of rhenium pernitride, scientists have found a simpler method for its synthesis - the substance can be obtained using a conventional press, and by replacing pure nitrogen with ammonium azide. In that case, it is enough to compress rhenium by 365 thousand atmospheres.
The report also says that the bulk modulus of elasticity of the new substance is 428 gigapascals, while in diamond this figure is 441 GPa.

Victoria Quiri, Correspondent of the European Bureau, Rough&Polished, Strasbourg