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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...

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James Campbell: Scoping study results for SA’s Thorny River due mid-year

Botswana Diamonds appeared to have expended most of its energy and resources last year on the new Thorny River project in South Africa as its Sunland Minerals joint venture with Alrosa, in Botswana takes long to find diamonds despite significant effort...

16 april 2018

MGCJ founder Branko Deljanin: Production of synthetic diamonds is still larger than consumption

Founder and Chairman of the Mediterranean Gemmological and Jewellery Conference, MGJC, Branko Deljanin kindly agreed to answer questions from Rough&Polished related to synthetic diamonds and the upcoming 4th session MGJC in May in Budva, Montenegro.

09 april 2018

There is some magic in a diamond

Alexander Gorynya is a Director General of the St. Petersburg-based Kongo jewellery company. He is a Chairman of the Union of North-West Jewellers. In 1978, he graduated from the North-Western Extramural Polytechnic University. Since 1983, he worked...

02 april 2018

Looking for the Kimberley Process achieving further and meaningful sustainable progress

On March 7, 2018, the United Nations General Assembly welcomed the progress made by the Kimberley Process Certification Scheme to break links between the diamond trade and conflict and adopted a consensus resolution aimed at intensifying that work aligning...

26 march 2018

De Beers says it will auction polished diamonds manufactured from its own rough

19 may 2017

De Beers’ Auction Sales said it will pilot the sale of its own polished diamonds using auctions for the first time. It said in a statement that the sale would comprise a wide range of polished stones manufactured directly from its rough diamonds.
De Beers occasionally used a third party contractor to cut and polish some of its rough diamonds to better understand to what extent they are delivering customers’ polished outcome requirements.
“We have a limited amount of a wide range of polished diamonds, so it makes commercial sense for us to trial this auction on our existing platform,” said De Beers’ Auction Sales Executive Vice President Neil Ventura.
“We are interested in testing the level of demand from polished buyers for diamonds that have a clear and attractive source of origin, and that offer the assurance of product integrity that dual certification provides.
He said a successful auction would also generate an additional polished price reference in US dollars per carat.
“In addition, this will complement our existing rough auctions and enable buyers to fill supply and inventory gaps if they were unable to secure supply at our spot and forward auctions for rough diamonds,” said Ventura.
Meanwhile, the group said polished diamonds were available following contract manufacturing of De Beers Auction Sales rough diamond products to assess what range of polished diamonds they would produce.
The polished diamonds would also be accompanied by both International Institute of Diamond Grading & Research (IIDGR) and Gemological Institute of America (GIA) grading reports.

Mathew Nyaungwa, Editor in Chief of the African Bureau, Rough&Polished

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