Archive

  • The Dubai Diamond Exchange (DDE), a subsidiary of the DMCC, completed three rough and polished diamond tenders in the week of July 16 - 23 while the DDE is under renovation. The three separate tenders were hosted by Rapaport, Stargems and Trans Atlantic Gem Sales (TAGS), with reportedly over 200 companies participating.

  • Canadian junior miner Tango Mining recently sold at tender a parcel of 230 diamonds weighing 531.82 carats, achieving an average price of $1,382 per carat. The sale included a 19.87-carat diamond which sold for $4,358 per carat, a 49.6-carat diamond which sold for $2,561 per carat and a 24.97-carat diamond which sold for $1,101 per carat. The diamonds on tender were recovered during the most recent production period at its Oena project in South Africa, May 9 to July 7 2019.

  • Rio Tinto has unveiled the collection of diamonds on sale at what may be one of its last tenders of the world's rarest pink and red diamonds, as the life of the Argyle mine in Western Australia is winding down. The mine produces more than 90 percent of Australia's diamonds, and is one of the only known sources of pink diamonds in the world.

  • Alrosa held a tender for polished diamonds in New York this June, earning $3 million from the sale of 20 polished diamonds with total weight of 140.4 carats for an average value of approximately $21,430 per carat. The diamonds on tender included 8 gemstones of standard color and 12 fancy colored polished diamonds, most of them with Fancy Yellow and Fancy Intense Yellow characteristics.

  • Lucapa Diamond Co.'s latest sale of diamonds from the Lulo alluvial mine in Angola achieved gross revenues of US$10.0 million (A$14.5 million) from run of mine parcels totalling 5,573 carats, representing an average price of US$1,800 per carat. This took total sales of Lulo diamonds to date in H1 2019 to US$22.1 million achieving an average price per carat of US$3,668, "further underling Lulo’s status as the world’s highest average price alluvial diamond production," the miner writes.

  • ASX-listed Lucapa Diamond Company held the second tender in 2019 of diamonds from the new Mothae kimberlite mine in Lesotho, selling a parcel of 7,008 carats of rough diamonds sold at Bonas tender house in Antwerp for a total of US$3.5 million (A$5 million). The tender included prices of up to US$26,000 per carat paid for individual Mothae gems. 

  • This weekend, May 11 -13, the Dubai Multi Commodities Centre (DMCC) will be hosting what it is calling the "first-ever rough laboratory-grown diamonds tender" on its Dubai Diamond Exchange (DDE). According to a press release, 50,000 carats of Chemical Vapour Deposition (CVD) lab-grown diamonds will be on offer. "The tender is in line with DMCC’s strategy to attract, facilitate and drive new trade flows through Dubai," the organization says. 

  • Lucapa Diamond Co. has reported an "excpetional performance" from the Mothae kimberlite mine in Lesotho in its first full quarter of production, while output from the Lulo alluvial mine in Angola fell as the miner focused predominantly on lower grade mining areas. The miner held two milestone tenders during Q1 2019: its first ever sale of Lulo diamonds via international tender under the new diamond marketing reforms enacted by the Angolan President, Joao Lourenco, and its first commercial run of mine tender from Mothae via Bonas tender house in Antwerp. 

  • Diamond Fields Resources, based in Vancouver, sold 47,298 carats of Namibian marine diamonds for $1,105,530 at a tender in Antwerp, including a 5.71 carat pink diamond which sold for $97,076 or $17,000 per carat. This was the first sale of diamonds from the ML111 licence offshore Namibia since mining resumed in 2018.

  • Rough diamond buyers almost by default desire ‘original’ rough, flowing directly from the mine of origin to the tender house. With current supply limited and no major increases on the horizon, however, maximizing the volume of available goods becomes more of a priority. Adam Schulman at Koin International tender house in Antwerp believes he has found an answer in KoinDex, a sales system that takes the hidden supply of rough diamonds already available to the market and packages them into parcels deserving of the same respect and attention from buyers that original rough goods receive.

  • Diamcor Mining, a publicly traded junior diamond mining company based in Canada and operating in South Africa, sold 1,220 carats of rough diamonds recovered from ongoing processing exercises performed at its Krone-Endora at Venetia Project in South Africa for US$376,000, achieving an average sale price of $308.06 per carat. This represents an increase of 76% compared to the company’s average price per carat of $176.16 realised on all rough diamonds tendered and sold to date, and included the sale of a 44 carat gem quality rough diamond.

  • Australian diamond miner Lucapa has reached two milestones in the space of a month: first, the inaugural international tender of Angolan diamonds offered for sale via a competitive tender under the new diamond marketing policy enacted by the Angolan President, Joao Lourenco, and the maiden tender of goods from the Mothae mine in Lesotho held at Bonas t

  • Trans-Atlantic Gem Sales (TAGS) held their first tender of 2019 this month from 12 - 19 February in Dubai, selling a record $50.1 million worth of rough diamonds, as per a press note from the company. The sale featured a total of 79,213 carats of high-quality stones, included exceptional, special rough diamond collections with large and single stones from Angola, Namibia and South Africa. TAGS said the tender achieved an average price of $633 per carat.

  • Australian junior miner Lucapa Diamond Co. held the first sale of diamonds at the Bonas tender house in Antwerp from the new 1.1Mtpa Mothae kimberlite plant in Lesotho, marking the mine's arrival on the international market. The parcel of 5,411 carats of rough diamonds recovered during the plant ramp-up phase in Q4 2018 and in the first month of commercial mining operations at Mothae in January 2019 sold at tender in Antwerp for a total of US$3.8 million.

  • Tender house Koin International will hold their regular tender for South African miner KEM (Kimberley Ekapa Mining) from 4 - 8 March in Antwerp  This is a full Run of Mine production of 50,000cts including melee through to 10.80+ single stones and fancy colors. In addition, the sale will include KoinDex, Koin International’s innovative new monthly tender with ‘Trigger Pricing’. The “Trigger Price” is a displayed price which means buyers have access to a guaranteed sell point.

    Viewings will take place by appointment in Antwerp at the offices of Koin International.

  • 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.