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Diamonds

Welding Alloys South Africa

     4th July 2017 To lead the market in engineered wear protection solutions and flux cored welding wire technology, Welding Alloys South Africa (WASA) is focused on responding to its customers’ needs. Part of the Welding Alloys group, which covers more than 150 countries through a network of 30 subsidiaries... 

New mine design focused on realising business excellence

By: Robyn Wilkinson     9th June 2017 Johannesburg-based project management and engineering company Paradigm Project Management (PPM) will apply its “three halves” philosophy to design and develop diamond producer Stellar Diamonds’ Tongo-Tonguma project, in Sierra Leone. 

New mine design focused on realising business excellence
Photo by Duane Daws
RADICAL REVIEW NECESSARY With a diamond supply shortfall looming, exploration companies must employ innovative planning to obtain funding for new projects

Modern exploration tech to revive local diamond mining

By: Robyn Wilkinson     9th June 2017 With the application of third-generation exploration technologies, South Africa may prove to be the next diamond exploration frontier, says diamond explorer Botswana Diamonds MD James Campbell. 

Modern exploration tech to revive local diamond mining
REVISITING KEY LOCATIONS The first phase of drilling at Frischgewaagt, an eastward extension of the mined-out Marsfontein kimberlite pipe in Limpopo, was completed in April

Africa ramping up diamond exploration

By: Robyn Wilkinson     9th June 2017 As exploration activity in the African diamond mining industry resurges in expectation of a supply shortfall in the next five to eight years, mining consultant The MSA Group is preparing its facilities to meet a growth in demand for its services. 

Africa ramping up diamond exploration
GROUNDWORK ESSENTIAL As a first-stage evaluation of diamond grade, micro-diamond analysis can prevent significant expenditure on the bulk sampling of non- or subeconomic kimberlite

Difficult drilling proves rewarding at Koffiefontein

By: Robyn Wilkinson     16th December 2016 Diamond producer Petra Diamonds’ geological team has gained access to the kimberlite deposit between the 60 m level and 72 m level at its Koffiefontein project, in the Free State, owing to diamond drilling services provider Lesedi Drilling and Mining Contracting Company’s assistance in... 

Difficult drilling proves  rewarding at Koffiefontein
PRODUCTIVITY LIFTED Production at Petra Diamonds’ Koffiefontein project increased by 37% this year, as the result of more run-of-mine tonnage being treate

Junior miner to complete facility expansions this year

By: Robyn Wilkinson     16th December 2016 All of the facility expansions under way at the Krone-Endora project, in Limpopo, are on track for completion by the end of the year, says Canadian junior mining company Diamcor Mining CEO Dean Taylor. 

Junior miner to complete facility expansions this year
DEAN TAYLOR The current upgrades under way should address all optimisation opportunities identified by past testing and commissioning exercises at Krone-Endora

‘Exciting prospect’ awaits decision

By: Robyn Wilkinson     16th December 2016 Diamond explorer and project developer Botswana Diamonds is in discussions with its joint venture (JV) partner, Botswana State-owned copper and nickel producer BCL, to undertake essential verification drilling on a cluster of diamond-bearing kimberlite pipes at the Maibwe exploration project in... 

‘Exciting prospect’  awaits decision
JOHN TEELING There are currently powerful fundamentals driving the international diamond market, with analysts predicting a diamond supply deficit in future

JV plant to process Kimberley underground ore by H2 2017

By: Robyn Wilkinson     16th December 2016 Diamond miner Petra Diamonds expects all ore from its Kimberley underground operation to be processed through the combined treatment plant associated with its Kimberley Ekapa Mining (KEM) joint venture (JV) from the second half of fiscal year 2017 onwards. 

JV plant to process Kimberley underground ore by H2 2017
POSITIVE SIGNS Global diamond supply remains tight while demand from the US has been stable, with growth in emerging markets detected

Bulk of Cullinan C-Cut Phase 1 nears completion

By: Robyn Wilkinson     16th December 2016 Mining services company Murray & Roberts Cementation will complete its contract at diamond miner Petra Diamonds’ Gauteng-based Cullinan mine this month, concluding the largest portion of the R4-billion Phase 1 expansion project that will initially extend the diamond mine’s life span by about 15 year 

Bulk of Cullinan C-Cut Phase 1 nears completion
DELICATE OPERATION Detailed planning was undertaken to deepen the shafts at the Cullinan C-Cut project without disrupting the existing infrastructure and operations

DG Lab Services

     23rd September 2016 This knowledge and experience also encompasses testwork capabilities envisioned for future expansion. 

DG Lab Services

Industry growth in hands of junior explorers

By: Kimberley Smuts     29th July 2016 Diamond exploration enquiries received by mining industry consultancy The MSA Group from small players in Botswana, Lesotho and the Free State have increased considerably since May this year. This includes greenfield kimberlite indicator mineral testing, alluvial diamond mineral resource... 

Industry growth in hands of  junior explorers
NEED FOR NEW PROJECTS The diamond industry urgently needs to find new mines, as the supply-demand gap will widen from 2019 onwards and, consequently, drive price increases

Large-diameter drilling at Orapa project may start at year-end

By: Kimberley Smuts     29th July 2016 Exploration company Tsodilo Resources aims to extract between 2 000 t and 3 000 t of kimberlite from BK16, potentially one of the last economic kimberlite pipes in the Orapa kimberlite province in Botswana, during a large-diameter drilling (LDD) programme in the fourth quarter of the year. The... 

Large-diameter drilling at Orapa project may start at year-end
BETTER TREATMENT The dense medium seperator plantat Tsodilo's Orapa project is scheduled for an upgrade in the third quarter of this year

Project targets millennial diamond consumers

By: Kimberley Smuts     29th July 2016 International diamond mining organisation the Diamond Producers Association (DPA) is working on a project aimed at tackling the generic marketing of diamonds to attract standard and millennial consumers, otherwise known as the ‘Y’ generation. Rough and polished diamonds trader Blom Diamonds owner... 

Project targets millennial diamond consumers
Photo by Bloomberg
MARKETING MATTERS The diamond industry is undertaking the first catefory marketing campaign in over five years

Sorters prove worth to industry

     3rd June 2016 A joint venture between mining and minerals processing engineering specialist IMS Engineering and German separation technology company Steinert has borne fruitful with the introduction of Steinert’s X-ray transmission (XRT) sorters in use in the diamond mining industry. Two of the sorters have... 

Sorters prove  worth to industry
DIAMOND ADVANTAGE The XRT sorter remains important in diamond recovery technology as its main advantage remains that the ion detects different X-ray absorption levels of different material types

Venetia takes safe approach to building major underground operation

By: Simon Sonnekus     3rd June 2016 Anticipating and prioritising the additional challenges and potential hazards of implementing underground mining operations at the Venetia diamond mine requires putting the necessary enablers and precautions in place over the next few years. “It is a massive operation in logistics and cooperation... 

Venetia takes safe approach to building major underground operation
OPENPIT TO UNDERGROUND Production from the underground development is expected in 2022 and the current plant will treat about 132-million tons of material, containing an estimated 94-million carats

Diavik hits 100 Mct as Ekati development gathers pace

By: Henry Lazenby     3rd June 2016 Canada’s largest diamond mine has reached the significant milestone of producing 100-million carats of rough diamonds since the mine started in 2003. A 60/40 joint venture between mining major Rio Tinto and Canada’s Dominion Diamond Corp, Rio Tinto Diamonds, Salt & Uranium MD Simon Trott praises... 

Diavik hits 100 Mct  as Ekati development gathers pace
FUTURE DEVELOPMENT Ekati’s Jay pipe, an 85-million-carat reserve, currently in the feasibility study stage, is expected to come on line in 2020

Major endorses diamond search

By: Henry Lazenby     3rd June 2016 Explorer CanAlaska Uranium has gained a multimillion-dollar endorsement from the world’s largest crystallised-carbon producer De Beers Group of Companies, after the partners entered into an option-participation agreement for expenditures up to C$20.4-million on kimberlite-style targets staked by... 

Vacuum solutions provider assists diamond industry

By: Simon Sonnekus     3rd June 2016 Heavy-duty industrial vacuum systems designer, manufacturer and supplier Hencon Vacuum Technologies is testing an automated, remote-controlled dual-vacuum unit at diamond miner Petra Diamonds’ Cullinan mine, in Gauteng, which is expected to reduce theft. The Honeydew-based company is conducting... 

Vacuum solutions provider assists diamond industry
DAVID DE OLIVEIRA The use of Hencon Vacuum Technologies' dual vacuum system allows a tunnel to be bored without the need for immediate roof support being installed

Rough diamond valuation global industry challenge

     3rd June 2016 Rough diamond valuation remains a challenge that is not limited to one country, one diamond centre, or the government-led certification scheme the Kimberley Process (KP), it is a critical challenge for the entire diamond industry, says United Arab Emirates (UAE) KP chair Ahmed Bin Sulayem.... 

Rough diamond valuation global industry challenge
SULTAN BIN SAEED AL MANSOURI The Kimberley Proces strives to enable trade to flourish in a safe and stable environment so that all participants and their dependent societies can benefit to the full

Diamond beneficiation boost targets youth

By: Dylan Slater     11th December 2015 To empower young diamond beneficiators in South Africa, where the sector has declined in recent years, the Young Diamond Beneficiators Guild was established to provide support to new entrants in the local industry and assist in getting more South African youth into the diamond industry, thereby... 

Diamond beneficiation boost targets youth
Photo by Duane Daws
REINFORCING INDUSTRY The Young Diamond Beneficiators Guild aims to strengthen South Africa’s diamond beneficiation industry

Drowning SA diamond industry needs consolidated efforts to be revived

By: Dylan Slater     11th December 2015 South Africa’s diamond mining industry is shrinking, continuing on a downward spiral following years of disinvestment, a drain on skills and beneficiation job losses, says World Federation of Diamond Bourses president Ernie Blom. The country’s once iconic and thriving diamond industry is... 

Drowning SA diamond industry needs consolidated efforts to be revived
Photo by Duane Daws
IN SPOTLIGHT The South African diamond industry requires consolidated efforts to regain momentum and re-establish its diamond beneficiation industry

Sustainability of major player highlighted at first Diamond Indaba

By: Dylan Slater     11th December 2015 Diamond miner De Beers is undertaking various projects and initiatives together with stakeholders to promote the prospects of the longer term sustainability of the industry. One of the most significant is by stimulating the market for diamonds at a time when it “finds itself in difficult times”,... 

Sustainability of major  player highlighted at first Diamond Indaba
BROAD EFFECT The weaker global demand for many commodities also has its impact across the diamond pipeline, from producers to beneficiators and retailers

Diamond mine expansions on track, within budget

By: Mia Breytenbach     31st July 2015 London-listed diamond mining group Petra Diamonds’ expansion programmes at its flagship Cullinan and Finsch diamond mines, in South Africa, remain on track and within budget, with development progressing well, states Petra Diamonds CEO Johan Dippenaar. Construction on the modern, fit-for-purpose... 

Diamond mine expansions on track, within budget
Photo by Petra Diamonds
ON SCHEDULE The C-Cut Phase 1 expansion plan at the Cullinan mine includes a new production level, which is being established at 833 m

Diamond plant optimisation nearing completion, sights set on exploration

By: Mia Breytenbach     31st July 2015 Southern Africa-focused precious gem producer Lucara Diamonds is finalising the optimisation of the newly integrated circuit as part of its flagship Botswana-based Karowe diamond mine’s plant optimisation project. Lucara president and CEO William Lamb tells Mining Weekly that Karowe’s optimised... 

Diamond plant optimisation nearing completion, sights  set on exploration
Photo by Lucara Diamond Corporation
SAMPLING ADDITION The modules of the modular bulk sample including the front end, the DMS, de-gritting and recovery, were pre-assembled off site to ensure that everything fits

Expansions, new mines needed to boost diamond supply

By: Mia Breytenbach     31st July 2015 The impending shortage of natural diamonds, with demand forecast to exceed supply within the next decade, is encouraging the establishment of new mines and the development of additional diamond projects, suggests World Federation of Diamond Bourses (WFDB) president and diamond polisher Ernest... 

Expansions,  new mines  needed to boost diamond supply
SHORT SUPPLY Although the diamond projects and expansions will create additional rough diamond supply in the short term, this supply may not meet eventual demand

Rough diamond price recovery expected in medium term

By: Mia Breytenbach     31st July 2015 While there is the expectation that rough diamond prices will potentially recover within the next six months, Southern Africa-focused diamond producer Lucara Diamond CEO William Lamb believes that the prices will recover only later, owing to the current estimated worldwide polished diamond... 

Rough diamond price recovery expected in medium term
Photo by Bloomberg
SPURRING ADVANCEMENT Several diamond cutters and polishers are adopting the latest technology, which contributes to maximising the value of the rough stones

Venetia underground expansion on track for 2021 first production

By: Mia Breytenbach     31st July 2015 Construction of the $2-billion underground extension of diamond miner De Beers Consolidated Mines (DBCM) South Africa’s Venetia mine is 18% complete, with the company having spent more than $250-million on the project to date, DBCM CEO Phillip Barton tells Mining Weekly. “We are making good... 

Venetia underground expansion on track for 2021 first production
Photo by De Beers Consolidated Mines
PROGRESSIVE DEVELOPMENT The current Venetia mine capital spend has been largely dedicated to site establishment and mining services infrastructure for the underground project

Future diamond-price increase inevitable

By: Kimberley Smuts     5th June 2015 Diamond prices are expected to rise on the back of an increase in middle-income customers, in China and India, who are interested in buying diamonds, says mining consultancy MSA Group. The company says the price increase will occur, as this increase in demand is not balanced by an equivalent... 

Future diamond-price increase inevitable
INCREASED DEMAND Growth in the industry is being driven by the massive new consumer markets in China and to a lesser, but still significant extent, India

Diamond producer aiming to establish new Botswana mine

By: Kimberley Smuts     5th June 2015 Diamond exploration and project development company Botswana Diamonds is aiming to establish a new diamond mine in Botswana, executive chairperson John Teeling tells Mining Weekly. The company expects to find new areas of kimberlite, potentially containing diamonds, by the end of this year, and... 

Diamond producer aiming to establish  new Botswana mine
JOHN TEELING There is a clear supply-demand gap opening. Demand for gemstones in Asia, the Middle East and parts of Africa is increasing, owing to an emerging middle class

Diamond partnership to develop cutting, shaping technology

By: Kimberley Smuts     5th June 2015 Diamond major De Beers announced last month that it had acquired a 33.4% equity stake in Swiss-based patent protected laser micro jet (LMJ) technology owner and supplier Synova SA. De Beers will now work with Synova to develop a fully automated cutting and shaping technology, with LMJ at its... 

Diamond partnership  to develop cutting, shaping technology
Photo by Synova
DEDICATED TECHNOLOGY DEVELOPMENT De Beers will now work with Synova to develop a fully automated cutting and shaping technology, with LMJ at its core, which is expected to enhance diamond cutting and polishing efficiency

Grown diamond industry poised for success

By: Kimberley Smuts     5th June 2015 The grown diamond industry was poised for great success, scientists and researchers from top universities in the US, Belgium, Russia and Taiwan said in December at a round-table meeting – The Future of Grown Diamonds – hosted by diamond growers IIa Technologies. IIa Technologies chief technology... 

Grown diamond industry poised for success
Photo by Bloomberg
BROADENING HORIZONS Grown diamonds are creating newer applications across industries and supporting more diamond-centered research
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