Ali Pastorini: Selling just the idea of glamour is no longer enough

Ali Pastorini is the co-owner of DEL LIMA JEWERLY and President of Mujeres Brillantes, an association which brings together approximately 1000 women working in the gold and diamond trading sector, mainly from Latin America, as well as from Turkey, Spain...

21 may 2018

Diamonds are shifting from occasional to daily wear

Joy Alukkas started his first jewellery showroom in UAE in the year 1987, and today the Joyalukkas Group is a multi-billion global conglomerate with varied business interests. Beginning with a single jewellery room in Abu Dhabi, Joy Alukkas has grown...

14 may 2018

GJC has played a crucial role in the last 10 years in improving the compliance level in the industry

Coming from a renowned family of jewellers based in Akola, Maharashtra, Nitin Khandelwal heads Khandelwal Jewellers (Akola) Pvt Ltd. He has interests in the Plastic industry, Real estate, Health & Recreation and Cold storage industries as well...

07 may 2018

Johnson: ASM diamond sector a potential new source of supply for De Beers

De Beers recently said that it is planning to pilot a programme called GemFair that will create a “secure and transparent route” to market for ethically-sourced artisanal and small-scale mined (ASM) diamonds. GemFair would partner with the Diamond...

03 may 2018

Zimnisky: Hard to protect lab-diamond price as production methods, economics improve

Paul Zimnisky, an independent diamond industry analyst and consultant, said it will be very difficult for the lab-diamond manufactures to protect price as production processes and economics improve. He told Rough & Polished’s Mathew Nyaungwa in an exclusive...

23 april 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.


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