Vladimir Zboykov: New times have come for jewelers

How a personal collection of minerals was thrown on the scrap-heap, who is behind the destruction of gemstone consumption culture in Russia and why jewelers will soon have to choose between business and prison – all this was told to Rough & Polished...


Changing preconceptions in the diamond and financial markets

Eli Avidar is a man on the move…literally. In April, the former Israeli diplomat stepped away from the CEO’s office at the Israel Diamond Exchange, a position he had held for more than two years, and from the Israel Diamond Institute, where he had been...

13 august 2018

Chasing a dream…

Elina Chan, MD of Shenzhen Shi Qing Yu Zhubao Ltd completed her higher education from Xiamen University and Master’s degree from Hong Kong University. To achieve her dream to start a business, Elina gave up numerous job opportunities in Hong Kong and...

06 august 2018

Pangolin Diamonds using termites to find kimberlite indicators in Botswana

It is not a secret that the rate of kimberlite discovery in Botswana has dropped considerably and research has shown that termites can help diamond explorers have an understanding of the transport mechanism of kimberlite indicator minerals from the kimberlite...

30 july 2018

In another fifty years, we’ll have a different scale of valuation, and all those items of natural origin – including diamonds – will sharply increase in price

Within the framework of the Qatar-Russia 2018 Year of Culture, the World Diamond Museum hosts an exhibition of the Qatar Museums at the State Historical Museum in Moscow – "Pearls: Treasures of the Seas and the Rivers," that opened on 11 July...

24 july 2018

Tsodilo recovered first diamonds with sorter of Bourevestnik, part of ALROSA Group

08 may 2018

Tsodilo Resources Limited (“Tsodilo”) received first diamonds in Botswana project with POLUS-M sorter, designed by Bourevestnik, Inc., a company of ALROSA Group.
Tsodilo completed processing of 56 samples of kimberlite ore of the BK16 project in the volume of 925 kg of diamond ore concentrate that were retreated on the POLUS-M sorter, developed by Bourevestnik, Inc. As a result of the processing, 101 diamonds with a total weight of 18.571 carats were recovered, the largest of which was 1.375 ct.
The portable sorter POLUS-M commissioned at Tsodilo’s recovery facility in December 2017 is designed for the treatment of dry diamond bearing concentrate of –8 +0,5 mm size fraction with the throughput up to 100 kg/h. The sorter was specially designed for geological exploration in field conditions, but is also used in the field of industrial diamond enrichment in small-scale mines.
Due to its small size and weight, as well as the possibility of working without the connection of compressed air and cooling liquid, POLUS-M is a universal machine for processing diamond ore with not less than 98% recovery rate. One of the main users of POLUS-M sorters is ALROSA Group, in particular, the facilities of JSC “Almazy Anabara”. Total park of 21 sorters of this model are used in production facilities of ALROSA.
Bourevestnik, Inc. is one of the world’s biggest designers and manufacturers of X-ray sorters for diamond recovery and is a subsidiary of “ALROSA” (PJSC).
POLUS-M is not the only development of Bourevestnik performed for ALROSA, but used also in overseas. Formerly Bourevestnik supplied and commissioned 27 luminescent sorters at new recovery plant of Cullinan mine in South Africa, which is owned 74% by Petra Diamonds.
Tsodilo Resources Limited is an international diamond and metal exploration company engaged in the search for economic diamond and metal deposits and is engage in a series of projects in Botswana and South Africa.