Archive

  • Diamond tender house Koin International will hold two rough diamond tenders for original African productions this February in Antwerp. From 11 – 14 February, Koin will tender the KEM (Kimberley Ekapa Minerals) production from Kimberley, South Africa. This is a full Run of Mine tender including large single stones and fancy colors. KEM's sought-after production was previously offered only in South Africa, but Koin held a successful initial tender in Antwerp last August-September.

  • Lucapa Diamond Co. sold seven large, top-quality diamonds weighing 498 carats at the inaugural competitive tender under Angola’s new diamond marketing policy, earning US$16.7 million, representing an average price of US$33,530 per carat. The exceptional stones from the Lulo alluvial mine in Angola were offered for sale via electronic tender organised by Sodiam (Angolan state diamond marketing company) in Luanda.

  • International Mining and Dredging Holdings (IMDH) will be holding its first tender since 2016 of Namibian marine-mined rough diamonds at Bonas-Couzyn’s Antwerp offices. Bonas said the first sale from IMDH will bring to market approximately 47,000cts of original marine goods of gem quality, mined by the specialist mining vessel, the Ya Toivo. “This exciting source will be holding regular ROM production tenders with Bonas-Couzyn in Antwerp throughout 2019,” the tender house said.

  • Laurelton Diamonds, a wholly owned subsidiary of Tiffany & Co. and supplier to the famous jeweler, will be holding tenders of rough as well as polished goods in Antwerp during the month of January. The tender of rough and sawn goods gets underway on Tuesday, January 8 at the Antwerp Diamond Tender Facility located in the Antwerp World Diamond Centre building, Belgium, and will continue until Thursday, January 17. The tender will include a selection of white and Cape Rough parcels in sizes from +5cts to -7 in regular and high quality assortments in Cts and Grs.

  • Mining company Lucapa Diamonds and its partners on the Lulo project in Angola have announced that their diamonds will feature in an historic inaugural international tender in the country. The tender is part of the new Angolan diamond marketing laws recently been approved by President Joao Lourenco and the Council of Ministers. According to Lucapa, the policy shifts in Angola allow management to plan for the sale of such high-value stones, something the company was not able to do before because previous rules forced producers to sell their gems to middlemen below international prices.

  • Lucapa Diamond Company, which only two weeks ago commenced its commissioning of the 1.1Mtpa (million ton per annum) treatment plant at the high-quality Mothae kimberlite open-pit diamond mine in Lesotho, will be holding its first ever tender of Mothae diamonds in Antwerp, starting November 12. The Mothae treatment plant, which incorporates two XRT diamond recovery circuits, will be ramped up to its nameplate capacity throughout the December quarter.

  • Zimbabwe’s second diamond tender of 2018 earned $28.3 million from 423,066 carats, for an average price of $67 per carat. This represents a huge step forward as the country tries to regain market confidence and reclaim a stake in the global diamond trade, even though the tender attracted fewer international buyers than expected. 

  • Koin International Tenders has announced the addition of the KEM production (Kimberley Ekapa Minerals, South Africa) to its rough tenders. Previously offered only in South Africa, this sought-after production will now be offered at Koin tenders in Antwerp. An initial sale of over 66,000cts of 3Gr down and 10.80+ Single Stones will be on offer. Viewings for 10.80+ will be from August 20 to September 5, overlapping with Run of Mine production from the 28 August to 7 September.

  • Rio Tinto's Arglye mine in Australia - the world's main if not only source of pink diamonds - may be heading for closure in 2020, but not before going out with a bang. The miner will headline one of its last ever pink diamond tenders with the Argyle Alpha vivid pink diamond, weighing 3.14 carats, which was actually uncovered in 2015. It the largest stone of its color in the history of the annual sales event.

  • Canadian miner Mountain Province Diamonds (49% participant with De Beers Canada in the Gahcho Kué diamond mine in Canada’s NWT) announced the results of its recently completed fifth diamond tender sale of 2018, and the total proceeds from the sale - US$30.3 million (CDN$40.0 million) - set a new high for Mountain Province’s tender results to date. The tender also included the sale of the miner's highest value individual diamond, as well as the highest attributable value per ton ($234) to date, with a normalised value at US$86.

  • Dominion Diamond Mines will hold an online auction of its latest production of fancy colour and +10.8 carat rough diamonds, in co-operation with I. Hennig Tenders, on Thursday, 19 July 2018. Dominion says the most recent production from the Misery kimberlite pipe, of the Ekati Diamond Mine in the Northwest Territories of Canada, has delivered a quantity of exceptional yellow fancy colour stones, which will be presented for sale at the upcoming auction.

  • Lucara Diamond Corp.,a leading producer of large exceptional quality Type IIa diamonds from its 100% owned Karowe Mine in Botswana, achieved $32.48 million at its 12th Exceptional Stone Tender which concluded yesterday. The tender consisted of 10 single stone lots, ranging from 472.37 to 40.4 carats in size, totaling 1,453.06 carats and included two diamonds greater than 300 carats.

  • Koin International will hold a rough diamond tender in Antwerp from 18 - 26 June 2018, including original productions from Meya Mining (Sierra Leone), Ekapa Minerals (Kimberley, South Africa), and over 60,000cts of rough goods from Angola. The tender will also feature an Single Stone Tender of 'special' (+10.8 carat) stones from Angola. All productions are a full range of colours and qualities.

  • Russian diamond mining giant ALROSA will hold the auctions for the sale of special size rough diamonds (+10.8 carats) in Hong Kong and Vladivostok this June. The auction in Hong Kong will take place on June 13-27, where the company will auction 105 gem-quality lots with total weight of 1,620 carats. The second auction will be held on June 18-29 in Vladivostok, where company plans to auction 130 gem-quality lots with total weight 2,149 carats. 

  • Lucara Diamond Corp. will be holding its first Exceptional Stone Tender of 2018, faciliated by tender house Bonas, on June 19. Viewings will take place starting June 10 in Gabarone, Botswana. The tender consists of 10 single stones ranging from 40.40 carats to 472.37 carats in size, including a 327 carat diamond, alongside other qualifying diamonds that have been recovered since the start of the year. Click through to view the catalogue of superior stones.

  • The Guangzhou Diamond Exchange held its first ever Rough Diamond Tender from 19-25 April, selling all the parcels available for nearly $6 million. The tender included more than 230,000 cts of of industrial and gem-quality diamonds rough diamond from Africa and drew nearly 50 companies from China, Belgium, the United Arab Emirates, India and Israel. The supplier of the stones, Société Anhui-Congo d’Investissement Minier, is a joint venture of Chinese enterprise and the government of the Democratic Republic of the Congo.

  • Bonas, one of the world's leading diamond brokering and tender houses, will exceptionally hold a polished diamond tender at the upcoming CARAT+ Diamond and Jewellery Fair at the Antwerp EXPO. Bonas typically organizes rough diamond sales on behalf of eminent miners such as Braùna, Kao, Lucara, Mountain Province and Stornoway, and provides a variety of consulting services through every stage of the diamond pipeline, from manufacturing all the way through to marketing and retail.

  • At its recently completed second diamond sale of 2018 in Antwerp, Mountain Province Diamonds (MPD) realized a value per carat of US$142, the highest achieved by Mountain Province in any tender sale to date, with total proceeds of US$25.1 million on approximately 177,000 carats sold. While the number of carats sold amounted to approximately half of the amount sold at the first sale of 2018, (351,000 carats), total revenues declined by only US$2 million as a result of a large number of fancies and specials included in this tender.

  • The Israel Diamond Exchange (IDE) launched the International Tender Center (ITC) in February last year to attract major diamond producers and trading companies to the market and make goods available to bourse members. According to the organization, the ITC "has succeeded beyond expectations during its first year of activity." So much so, the bourse has announced that the center will be expanded later this year to encompass a venue for live auctions.

  • In its first full year of commercial production at the Renard Diamond Mine in Quebec, Stornoway Diamond Corp. produced 1.64 million carats from processing 1.96 million tons of ore with an attributable grade of 84 cpht, compared to a plan of 1.69 mcts from 2.00 mtons at 85 cpht (97%, 98% and 99% of targets respectively).

  • Koin International will hold their January rough diamond tender in Antwerp from January 17 – 24 featuring multiple original rough mine productions from several African countries. The rough goods are from the following mining companies: Meya Mining (Sierra Leone), Diamcor (South Africa), Ekapa Minerals (Kimberley), ANGOLA F2M, Calendula (Angola), Texam (Guinea) and Kananga (DRC). The tender will also feature a selection of exceptional fancy yellow and pink diamonds. Viewings are by appointment only and can be scheduled through the link to the original article.

  • Antwerp's vibrant rough diamond tender program gets rolling this week as Laurelton Diamonds Belgium will be holding the viewings of its next tender of rough and sawn at the Antwerp Diamond Tender Facility [ATF] in the AWDC Building in Belgium, starting January 9 and running through January 18. The tender will include a selection of white, cape rough parcels in sizes from +5cts to -7 in regular and high-quality assortments.

  • Mountain Province Diamonds in December sold 364,000 carats at the tenth tender of rough diamonds from the Gahcho Kué mine, in which it has a 49% share - De Beers owns the 51% - at an average price of $53 per carat, for a total of $19.1 million.

  • Following the unearthing of the 476.7-carat diamond, dubbed the Meya Prosperity, at the Meya deposit in the Kono District of Sierra Leone, Meya Mining announced the appointment of Koin International as the marketing and sales agent for the exceptional diamond.

  • DDA Trading, part of the DDA Group, has announced its third sale of Namibian Marine rough diamonds, which can be viewed in Antwerp from Monday the 6th to Tuesday the 14th of November. The sale will close on Tuesday, 14 November. DDA Trading will be offering approximately 15,000 cts of full ROM, Original Marine Goods of gem quality. The goods are from the underwater concessions of Samicor.

  • Koin International will hold a rough diamond tender in Antwerp from 7-16 November, featuring a wide variety of African goods. They will present an enlarged original production of Meya Minings (Sierra Leone) as well as, for the first time, the original Allotropes Run of Mine (Sierra Leone).

  • Firestone Diamonds sold a total of 195,330 carats at their latest tenders in July and September 2017 in Antwerp, netting total sale proceeds of US$13.5 million, including the sale of the company's second >US$1 million stone. Nonetheless, the average value per carat fell to $69 from $107/ct.

  • Dominion Diamond Corporation has announced an auction of fancy yellow rough diamonds in cooperation with I. Hennig Tenders. The auction viewings will take place in Israel and Antwerp. The auction will commence with viewings in Israel from October 29 to November 1, 2017 and will conclude in Antwerp from November 6 to 10, 2017. Participation in the viewings and the auction is by appointment only. For more information and to arrange a viewing request email tenders@ihennig-tenders.com.

  • Merlin Diamonds Ltd has shipped a parcel of rough diamonds to Koin International (Koin) following the receipt of the requisite Kimberley Process Certificate for an auction commencing on August 30. The Merlin diamond mine in Australia’s Northern Territories is famous for producing large, high clarity, white, high value diamonds, including the largest diamond ever unearthed in Australia, at 104.73 carats.

  • Laurelton Diamonds, a wholly owned subsidiary of Tiffany & Co., will be holding the viewings of its next Tender of Polished Diamonds at the Laurelton Diamonds offices in Antwerp, Belgium. The Tender will include a selection of single GIA certified stones and grouped lots of GIA certified and non-certified polished diamonds. These include rounds ranging in size from caraters to melee. The tender is scheduled from Tuesday 22nd August to Tuesday 29th August in Antwerp. Viewing appointments can be booked. 

  • Rio Tinto has unveiled the largest Fancy Red diamond in the history of its Argyle Pink Diamonds Tender at a world exclusive preview in New York. The 2.11 carat gem, named ‘The Argyle Everglow’, is the centrepiece of the 2017 Argyle Pink Diamonds Tender – an annual showcase of the rarest diamonds from Rio’s Argyle mine in Western Australia. The GIA classified the gem as a notable diamond with a grade of Fancy Red VS2. Argyle Pink Diamonds manager Josephine Johnson said The Argyle Everglow “represents rarity within rarity” of diamonds, and will drive the global demand from collectors. 

  • "When you’re selling your offcuts for almost $20 million, you know something is going right," writes Thomas Biesheuvel for BloombergPursuits. "Lucara Diamond Corp. just sold a 373.7-carat diamond for US$17.5 million.

  • In October Firestone Diamonds announced the recovery of its first diamond from the Liqhobong Diamond Mine in Lesotho since the the re-commissioning of the new plant. Liqhobong is owned 75% by Firestone and 25% by the Government of Lesotho. Firestone has been ramping up production since then, and will hold its third tender in Antwerp as planned.

  • Koin International will hold its May rough sales of African diamonds in Antwerp from 8 - 17 May. The tender includes exciting selections of original mine rough productions, including diamonds from Ekapa Minerals (selection of tailings from Kimberley, South Africa), Angola F2M (10.80ct.+ and melee to 4ct. parcels), Diamcor Mining (original run of mine from Krone-Endora mine, South Africa, singles through to melee parcels), Democratic Republic of Congo (Run of Mine) and Guiter Minerals Sarl (Guinea Run of Mine).

  • Diamcor Mining Inc. has moved forward with the testing, commissioning and calibration of its new operational items and expansions at the company’s Krone-Endora at Venetia Project and expects the finalization of these facilities to be completed by April 30, 2017.

  • Sierra Leone's Ministry of Mines and Mineral Resources and the National Minerals Agency have issued a press release stating that the 709.48-carat rough diamond found in Koryardu village, Tankoro chiefdom in Kono district, Eastern Sierra Leone on March 14 will be sold inside Sierra Leone by international tender. Interested parties from all over the world will have the opportunity to participate.

  • The month of March will again see a full schedule of rough diamond tenders and sales in Antwerp.

  • DDA Trading Bvba is pleased to announce the second sale of Namibian Marine Rough Diamonds in Antwerp. They will be offering approx. 8,900cts of Full ROM, Original Marine Goods of Gem quality. The goods are from the underwater concessions of Diamond Fields Namibia ML 111. Viewings will take place by appointment only in Antwerp at DDA Trading’s office in the Antwerp Diamond Bank, Pelikaanstraat 54, Floor 6, 2018 Antwerp from Monday 20 to Monday 27 February with the sale closing on Tuesday the 28th of February.

  • Koin International will hold a rough diamond tender in Antwerp from 20 – 27 February, and will be presenting for the first time the production of IMDSA (Marine) as well as multiple other original rough mine productions. IMDSA is a new marine production mined in the seas of South Africa, comprising excellent models and gem quality production. Other productions on offer include Ekapa Minerals, ANGOLA F2M, Democratic Republic of Congo (DRC), Guinea, and brand new Koin Manufacturers’ Assortments (consistent monthly fixed assortments, perfect for manufacturers).

  • I. Hennig Tenders will be tendering a large selection (approximately 250 stones) of large single rough stones (10.80 carats to 183 carats) of Russian origin. Commenting on the upcoming rough diamond tender, I. Hennig Tenders CEO, David Kuchler said, “We will be offering a significant selection of large rough goods of Russian origin sourced in Gokhran in this upcoming tender. The tender will comprise of specialist commercial (cleavage and rejection) articles presenting an interesting buying opportunity to our tender clients.” The Tender will be held in Antwerp February 15-23.