Archive

  • Gem Diamonds on September 11 recovered a D-color, type II diamond weighing 127 carats from its Letšeng mine in Lesotho. The lastest find is the fourth exceptionally-sized (+100 carat) white diamond unearthed this year. Together with the three yellows stones larger than 100 carats recovered this year, their total of exceptional finds now sits at seven: the miner this year has recovered gem-quality white diamonds weighing 123.5, 127, 140 and 161 carats to go with gem-quality yellows weighing 114.2, 134 and 135 carats.

  • Lucara Diamond Corp. has recovered a 123-carat gem quality top white Type II diamond from its 100% owned Karowe Diamond Mine located in Botswana. The miner also recently recovered a 375-carat gem quality diamond at Karowe from the processing of historic DMS recovery tailings, generated prior to the incorporation of Lucara's XRT diamond recovery circuits. 

  • Rare and exceptional fancy color diamonds, as well as a large flawless emerald diamond will be in the spotlight at this autumn’s Magnificent Jewels and Jadeite auction at Sotheby's Hong Kong. The October 7 sale presents three very remarkable stones: a superb 10.64-carat fancy vivid purplish-pink diamond of internally flawless clarity estimated at $19.1 million to $25.5 million, an important 6.01-carat fancy vivid blue diamond, and a magnificent 80.88-carat D-color, flawless diamond.

  • Gem Diamonds first half 2019 results took a downturn as the miner recoverd fewer large stones at its Letšeng mine in Lesotho, while the average prices achieved per carat - while still the highest in the business - fell well below their averages over the past three financial halves. While year-over-year comparisons are somewhat skewed by the very high bar set in in H1 2018, revenue from the sale of rough stones was down 44% to $94.5 million compared with $168 million in H1 2018, though it was not too far off revenue from the previous half (H2 2018), which totaled $99 million.

  • Gem Diamonds has unearthed a 114.2-carat yellow stone from its Letšeng mine in Lesotho, making it the fourth major recovery of a colored diamond from the mine this year and the sixth gem-quality stone larger than 100 carats since the year began. 

  • Replicating the first-half results of 2018 was always going to be a challenge for Gem Diamonds, and against that high bar the miner came up short in H1 2019.

  • AGD Diamonds recovered three large diamonds weighing more than 100 carats between May and July 2019 at the Grib diamond mine in the Arkhangelsk Province of Russia and has now given them names. The largest of them, a unique diamond weighing 222.09 carats - touted by the company as the largest ever discovered in Europe - was named “Vladimir Grib” in honor of the former AGD chief geologist, an outstanding exploration pioneer. The stone was recovered on May 4, 2019 and is likely to be sold in Antwerp.

  • Gem Diamonds has unearthed a 'high-quality white diamond' weighing 140 carats from its Letšeng mine in Lesotho, making it the second white diamond larger than 100 carats recovered this year as well as the fourth of this magnitude in 2019.

  • Russian diamond mining giant Alrosa has recovered one of the largest rough diamonds to date from the Zapolyarnaya pipe of its Verkhne-Munskoye deposit, which officially opened in the autumn of 2018. The stone is a gem-quality rough weighing 63.15 carats of an octahedral shape with small chips on the edges and tops. The diamond is transparent with a yellow hue, the miner adds.

  • Gem Diamonds has unearthed a 135-carat yellow from its Letšeng mine in Lesotho, making it the third major recovery of a colored diamond discovery from the mine this year. Gem recovered an exceptional, 134-carat Type I yellow diamond back in April - the first yellow stone of that magnitude since they dug up a 151.52-carat yellow diamond nearly two years ago.

  • BlueRock Diamonds plc, the AIM-listed junior mining company which owns and operates the Kareevlei Diamond Mine in the Kimberley region of South Africa, has recovered its largest diamond to date: a 24.98 carat gem-quality stone. The miner’s largest diamond prior was 16.28 carats, which sold for $78,947. BlueRock's shares jumped 15% on the news published June 7, but the gain was short-lived, having receded to its level prior to the fiind. Update - The 24.98-carat rough diamond sold for for $190,000, representing an average price of $7,606 per carat.

  • Alrosa recently held two international auctions for special size rough diamonds (larger than 10.8 carats), earning a combined $19 million from 221 stones weighing a total of 3,490 carats. At the first, which took place in Ramat Gan, Israel, the company sold 120 stones with total weight of 1,940 carats, earning revenue of $10.2 million, or$5,258 per carat. The auction included two large diamonds weighing more than 50 carats each.

  • Lucapa Diamond Co. has recovered a 130 carat gem-quality diamond from its Lulo Diamond Project in Angola. The 130-carat diamond is the 13th diamond larger than 100 carats the miner has recovered to date and the second recovered so far in 2019 from the mine that produces the highest average US$ per carat alluvial diamond production in the world. Lucapa continues to recover large Special (+10.8 ct) white and fancy colored diamonds at the Lulo diamond concession.

  • Russian diamond miner Alrosa recently held two auctions of special-sized rough diamonds (+10.8 carats) in Vladivostok and Dubai, earning a total of $18.6 million from the two sales. The miner's haul from the Vladisvostok auction exceeded $9.65 million, with 29 companies from Belgium, India, Israel, the UAE, the USA, Hong Kong and Russia participating. A total of 150 diamonds with a total weight of 2,482 carats were up for sale, with 121 stones (2,030 carats) sold. Two especially large diamonds were sold, weighing 58.92 and 41.48 carats.

  • Lucara Diamond Corp. has recovered an astonishingly large diamond - 1,758 carats - from its Karowe Diamond Mine in Botswana. One of the largest diamonds in recorded history and the largest diamond ever recovered in Botswana, it may not be an immensely valuable clear white Type IIa beauty the miner is famous for - such as the 1,109-carat Lesedi La Rona or the 813-carat Constellation that fetched a record $63 million for a rough diamond - but it indicates the potential Lucara's state of the art XRT recovery circuit to detect and recover huge gems without breaking them.

  • Russian diamond miner Alrosa unearthed a gem-quality stone weighing 118.91 carats on April 16th, the eve of the launch of Zarya - a new deposit of ALROSA at Aykhal Mining and Processing Plant. It is the largest gem-quality diamonds found at the ‘International’ pipe over the past two years. The mined crystal is one of the largest gem-quality diamonds extracted from the ground at the mine ‘International’ in recent years; a similar large gem-quality diamond (109.61 carats) was mined here in summer of 2017.

  • Only weeks after recovering a 425-carat diamond, Petra Diamond's famed Cullinan mine has produced another big stone, this time a 209.9 carat D-Colour Type II diamond. The big diamond is the third +100ct Type II D color gem-quality diamond Petra has recovered since March 2019 and the fourth in this financial year. The find will take some of the sting out of the 7% production decline in the third fiscal quarter due to a slowdown at its Finsch mine in South Africa.

  • The Graff Lesedi La Rona weighs an awe-inspiring 302.37 carats and is a top D color, with exceptional clarity and both excellent polish and symmetry. The 302.37 carat Graff Lesedi La Rona is touted as the largest highest color, highest clarity diamond ever certified by the GIA, and the world’s largest square emerald cut diamond, expertly cut and polished by Graff’s world leading team of gemmologists and master polishers - a group from Antwerp.

  • The 'Spectacular 88.22-Carat Oval Diamond', said to be perfect according to every critical criterion, sells at the Sotheby's Hong Kong auction for HK$108 million/US$13.8 million to a Japanese private collector who names the stone the 'Manami Star', after his eldest daughter.

  • Petra Diamonds has recovered a 425.10-carat, D-Color Type II gem-quality diamond at its famed flagship Cullinan mine in South Africa. This is the second exceptionally large rough diamond and the third special stone the company has unearthed this year, following the recovery of a 100.83-carat D-Colour Type II gem-quality diamond and a 6.12 carat Type II blue stone.

  • Gem Diamonds unearthed a 161-carat top-quality Type II white diamond at the Letseng mine in Lesotho on 21 March 2019. It is the first recovery announced of a diamond weighing more than 100 carats in 2019, but not their first major find of the year. Last month, Gem recovered a high-quality 13.33-carat Type I pink diamond, which sold   for $8,750,360 in Antwerp.

  • Gem Diamonds, which operates the Letšeng mine in Lesotho, recovered four high-quality diamonds larger than 100 carats in January 2018 and never looked back, riding a record number of +100-carat diamond recoveries in a single calendar year (15) to increased revenues and profit, but they have declined to pay out a dividend. The first big find of the year was the exceptional 910-carat Lesotho Legend, which the miner sold last March for $40 million.

  • Russian diamond mining giant Alrosa recently recovered a "unique" gem-quality rough diamond weighing 98.8 carats from the Zapolyarnaya kimberlite pipe, which is the part of the Verkhne-Munskoye diamond deposit.

  • Despite a record year for the recovery of 'specials' (diamonds larger than 10.8 carats), including 33 diamonds in excess of 100 carats, Lucara Diamond earned its lowest revenue in six years due to the lowest average price per carat achieved in five years. Judging by their share prices, however, investors hardly seemed too concerned, as Lucara's stock price took an 8% dip following the announcement, only to regain half its loss back the next day.

  • Firestone Diamonds has announced the recovery of a 70 carat white, makeable diamond from its Liqhobong Mine in Lesotho.

  • Gem Diamonds had a banner year in terms of recoveries, sales and average prices acheived for its diamonds unearthed from its Letšeng mine in Lesotho. In addition to setting a company record for recoveries in a single year of diamonds larger than 100 carats (15) and of diamonds larger than 20 carats (257), in 2018 Gem's carats recovered increased by 13% to 126,875 carats (2017: 111 811 carats), sales jumped 29% to $267 million from $207 million, and the average price rose by 10% to $2,131 per carat, up 10% from $1,930 per carat in 2017.

  • 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.

  • Alrosa has recovered a unique rough diamond weighing almost 200 carats, which was mined at the Udachnaya kimberlite pipe in mid-January 2019. It is one of the largest diamonds recoverd by the Russian miner in recent years.

  • Lucara Diamond Corp. has recovered a 127 carat, top white gem diamond from its 100% owned Karowe Diamond mine located in Botswana. Since mining began at Karowe in 2012, a total of 129 diamonds in excess of 100 carats have been recovered, including an astounding 33 in 2018 alone. By way of comparison, Gem Diamonds, famous for its large diamond recoveries from the Letšeng mine in Lesotho, recovered a record 15 stones larger than 100 carats this year. Lucara's haul since 2012 includes 12 diamonds larger than 300 carats in size, of which 5 were recovered in 2018.

  • Gem Diamonds brought 2018 to a close much in the same way that it opened the miner's banner year - with the unearthing of a 125-carat high quality white, Type IIa diamond - recovered from the Letšeng mine in Lesotho. It was the fifteenth diamond greater than 100 carats the London-based miner recovered in 2018. The recovery, which took place on December 20, following the December 19 announcement of the recovery of high quality 101 carat and 71 carat white Type IIa diamonds, both recovered within a twenty four hour period.

  • Rio Tinto and Dominion Diamond Mines have announced the recovery of the largest known gem-quality diamond ever found in North America. The 552-carat yellow diamond was unearthed in October at the Diavik Diamond Mine, approximately 135 miles south of the Arctic Circle in Canada’s Northwest Territories. Measuring around 3cm by 5.5cm, it is said to be about the size of a chicken egg. "A diamond of this size is completely unexpected for this part of the world and marks a true milestone for diamond mining in North America and Canadamark diamonds overall," the companies said in a statement.

  • Russian diamond miner AGD Diamonds, which in September acquired an 100% stake in Antwerp-based Grib Diamonds N. V., the international sales arm for rough goods produced at the Grib Diamond Field, held a public auction last week for the sale of special-size diamonds (10.8+), earning a total of $14.1 million. The lots included large-size top-grade diamonds, including a unique bright yellow colored stone weighing 57.03 carats, which had been extracted by the Grib Mining and Processing Unit on June 18, 2018.

  • Russian diamond giant Alrosa held two auctions of special rough stones (10.8 carats and up) during the month of November, first in Vladivostok and then in Dubai, earning an average of approximately $4,900 from the sale of 4,030 carats, yielding a total of $19.8 million. In Vladivostok, the miner sold 119 gem-quality rough diamonds with a total weight of 1,890 carats for $10.3 million, representing an average price per carat of $5,540. This was the fourth and final auction in Vladivostok, their  Far Eastern platform, for 2018. They started holding auctions there in late 2016.

  • Lucara Diamond Corp.'s third quarter carat production from its Karowe mine in Botswana "exceeded expectations" as a result of increased efficiency in diamond recovery in the smaller sizes during 2018.

  • During initial tests of new flood plains being explored near the Lulo diamond project in Angola, Lucapa Diamond Company has discovered of a new alluvial source of large and premium-value diamonds. Lucapa reports a total of 1,502 carats recovered so far from 11,155 bulk cubic metres processed, achieving a diamond grade of 13.5 carats per 100 cubic metres. The sample included 17 specials (+10.8 carats), including an exceptional 55 carat Type IIa D-colour white The average size of the diamond recovered was 1.4 carats. 

  • All signs are pointing upward for Lucapa Diamond Co. these days, with the exception of their rough diamond sales in Q3, which fell by 49% as the miner withheld several exceptional, large and premium-value specials (+10.8 ct.) for sale at a later date. This parcel (pictured) includes a 46-carat pink, and top-color Type IIa white diamonds weighing 114, 85, 75, 70, 62, and 43 carats respectively.

  • Gem Diamonds has recovered a 357 carat light brown high-quality diamond trom its 70 percent-owned Letšeng mine in Lesotho, representing the 13th stone larger than 100 carats the miner has unearthed this year, a company record. The latest find is Gem's second-largest this year, with their largest being the 910 carat Lesotho Legend, a D color Type IIa diamond recovered in January, which sold for $40 million last March. 

  • Russian diamond miner ALROSA recently concluded an auction of special-sized (10.8 carats and above) rough diamonds in New York, earning $7.9 million from the sale of 1,300 carats for an average price of approximately $6,077 per carat. This by far outstrips the average price the miner recently earned at an auction of the same category of diamonds in Hong Kong, which achieved $4,790 per carat.

  • CEO of Australia’s Lucapa Diamond Company, Stephen Wetherall, paid a visit to Antwerp recently, where The Diamond Loupe caught up with him. We encountered an optimistic CEO that is clearly excited about the future of Lucapa, and justifiably so. The growing miner operates, together with its partners in Angola, the highest-value and most promising alluvial diamond project in the world - the Lulo Diamond Project.

  • Russia's ALROSA has sold 2,234 carats worth of special size rough diamonds (larger than 10.8 carats) at an auction in Hong Kong, earning $10.7 million in sales revenue at an average price of $4,790 per carat. The 2,234 carats derived from 136 gem-quality diamonds, including 25 fancy yellow stones weighing 440 carats in total. 54 companies from Hong Kong, mainland China, Belgium, Israel and India took part in the auction.