Diamond miner Lucara Diamond Corp has sold the 549 ct Sethunya and the 1 080 ct Eva Star diamonds, recovered at its Karowe mine, in Botswana, for $54-million.
The Sethunya, recovered in 2021, and the Eva Star, discovered in 2023, showcase the remarkable quality and size of diamonds consistently produced from the South Lobe of the Karowe kimberlite. These exceptional stones underscore Karowe’s position as one of the world’s most prolific sources of large, high-value diamonds, Lucara states.
“The sale of these two extraordinary diamonds further validates our investment in the Karowe underground project. The unique characteristics of Karowe’s kimberlite, particularly in the South Lobe, continue to amaze us with its ability to produce diamonds of exceptional size and quality. The mineralogy we’re seeing is truly unprecedented in the industry, consistently delivering Type IIa diamonds of remarkable clarity and size,” adds president and CEO William Lamb.
The Karowe mine has yielded some of the world’s largest diamonds, including the 1 758 ct Sewelô, recovered in 2019; a 1 174 ct diamond recovered in 2021; and the 1 109 ct Lesedi La Rona, recovered in 2015.
The 1 080 ct Eva Star diamond was the fourth diamond weighing more than 1 000 ct to be recovered at the mine.
This was followed by the recovery of the 2 492 ct Motswedi diamond in August last year and the 1 094 ct Seriti diamond in September last year.
The 2 492 ct Motswedi is the second-largest diamond ever to be recovered, with the largest being the 3 106 ct Cullinan diamond recovered in South Africa in 1905.
The Karowe underground expansion project will extend the mine’s life beyond 2040 and has been designed to access the parts of the South lobe at depth where the EMPKS ore type is prevalent.
Production at the underground mine is scheduled to start in the first half of 2028.
Lucara Diamond has unveiled the names chosen of the two largest diamonds recovered this year at its prolific Karowe mine in Botswana.
The 2,488 carat diamond found in August has been named Motswedi, meaning “water spring” or “the flow of underground water that surfaces to bring life and vitality” in the local Setswana language.
The 1,094 carat diamond recovered in September is now known as Seriti, which translates to “aura” or “presence” in Setswana. The name carries deep cultural significance, reflecting identity and legacy.
Lucara said the two diamonds were not just geological phenomena, but a testament to the “incredible potential” of Karowe and the company’s innovative approach to diamond recovery.
“Each stone tells a story millions of years in the making, and we are humbled to be the custodians of these remarkable gems as they prepare to enter the global market,” president and chief executive officer, William Lamb, said in the statement.
To honor the community’s involvement, Lucara awarded the winner of the Motswedi naming competition 100,000 Pula (about $7,325), while the winner for Seriti received 50,000 Pula ($3,660). Both winners will also be invited to tour the Karowe mine.
Lucara said it was considering sale options for both diamonds.
Motswedi and Seriti are two of six diamonds weighing more than 1,000 carat that Lucara has recovered at its Karowe mine since operations began. These include the 1,758-carat Sewelô in 2019, the 1,109-carat Lesedi La Rona in 2015, and the 813-carat Constellation, also in 2015.
Karowe is also credited for having yielded Botswana’s largest fancy pink diamond to date, the Boitumelo.
The mine remains one of the world’s highest-margin diamond mines, producing an average of 300,000 high-value carats each year.
Diamond producer Lucara Diamond Corp sold 76 387 ct of diamonds, generating $41.3-million in revenue, during the second quarter ended June 30.
The company recovered 92 419 ct of diamonds at a grade of 12.9 ct for every 100 t of direct milled ore.
Additionally, 8 349 ct were recovered from processing historic recovery tailings. The company recovered 206 special diamonds, defined as rough diamonds weighing more than 10.8 ct, representing 6.9% by weight of the total recovered carats from the second quarter’s processed ore. This aligns with the company’s expectations, Lucara said.
Noteworthy recoveries during the period included a 491 ct Type IIa diamond, a 225.6 ct Type IIa diamond and a 109 ct Type IIa diamond.
Significant progress was made in shaft sinking for the ventilation and production shafts during the second quarter, with the critical path ventilation shaft ahead of the July 2023 rebase schedule. By the end of the quarter, the production and ventilation shafts had reached depths of 557 m below collar and 550 m below collar, respectively.
Operational highlights from the Karowe mine for the quarter included ore and waste mined of 700 000 t, with ore processed totalling 700 000 t.
Financial highlights for the second quarter revealed operating margins of 67%, compared with 59% in the second quarter of 2023. This strong operating margin is attributed to robust pricing for the company’s larger stones and cost reduction initiatives, supported by a strong dollar.
The operating cost was $26.32/t processed, a 6% decrease from $27.97/t in the second quarter of 2023 and consistent with the $26/t in the first quarter of this year.
Lucara believes the impact of inflationary pressures, particularly in labour, was well-managed by the operation, with a strong dollar offsetting a slight increase in costs compared with the previous period.
Adjusted earnings before interest, taxes, depreciation and amortisation (Ebitda) were $18.8-million, up from $16.5-million in the second quarter of 2023, driven by increased revenue and lower operating expenses.
During the second quarter, the company invested $11.2-million into the Karowe Underground Project (KUP), excluding capitalised cash borrowing costs. The ventilation shaft sank 128 m, and development of the 470-level station, located at about 550 m below collar, began.
Production shaft activities included the sinking of 104 m and the completion of three probe hole covers, with no water being intersected. A total of 26 m of lateral development on the 470-level, along with the 470-level station development, was completed.
As of June 30, Lucara reported cash and cash equivalents of $21.9-million and working capital of $21.7-million. The company had drawn $165-million on the $190-million project facility for the KUP, with an additional $25-million drawn on the $30-million working capital facility and a cost overrun reserve account balance of $37.5-million.
The Karowe mine registered no lost-time injuries during the second quarter, taking the mine to more than three years without a lost-time injury.
“Lucara’s performance this quarter reaffirms our position as a leader in the diamond industry. Our . . . safety and operational excellence [record] continues to drive our success, with both our openpit operations and underground construction progressing admirably. The Underground Expansion Project, in particular, is advancing well, with shaft sinking progress surpassing our expectations,” Lucara president and CEO William Lamb said on August 12.
Lucara noted that, in the diamond market, the long-term outlook for natural diamond prices remains positive owing to improving supply and demand dynamics, largely driven by long-term reductions from major producing mines.
However, the market for smaller-sized diamonds remains soft, impacted by a weak Asian market and the rise of laboratory-grown diamonds.
Lucara said demand for larger diamonds over 10.8 ct remained robust, as reflected in the company’s sales.
However, the G7 sanctions on Russian diamonds over 1 ct, effective March this year, have caused some trade delays owing to new regulations requiring these diamonds to be processed through the Antwerp World Diamond Centre for origin verification.
Lucara, with its established operations producing Botswana diamonds, stands to benefit from this heightened focus on origin verification.
Sales of laboratory-grown diamonds increased steadily through 2023 and into this year, with many smaller retail outlets increasingly adopting these diamonds as a product.
In the second quarter, diamond producer De Beers announced that it would cease creating synthetic diamonds and focus on selling natural diamonds. This decision aligns with several major brands confirming they would not market laboratory-grown diamonds.
Lucara said the long-term impact was expected to support the natural diamond market, with a bifurcation between the natural and laboratory-grown diamond markets expected in the medium term.
The company believes that the longer-term market fundamentals for natural diamonds remain positive, as demand is expected to outstrip future supply, which has been declining globally over the past few years.
Canada’s Lucara Diamond continues to find gem quality, coloured diamonds at its Karowe mine, in Botswana, which in April yielded the 1,758 carat Sewelô meaning “rare find” diamond, the largest ever recovered in the African country.
The Vancouver based miner has now recovered a 9.74 carat blue and a 4.13 carat pink diamond from direct milling of the South Lobe, the area that yielded the famous 1,111 carat “Lesedi La Rona” in 2015.
The announcement comes on the heels of last week’s display of a 123 carat gem quality, top white, Type II diamond, found at the same section of the mine.
It also follows the recent sale of a 2.24 carat blue for $347,222 per carat.
Karowe, which began commercial operations in 2012, has this year yielded 22 diamonds larger than 100 carats, eight of them exceeding 200 carats.
Since the start of the year, the miner has sold 19 diamonds each with an individual price in excess of $1 million at its quarterly tender sales. This includes seven diamonds that fetched more than $2 million each, and one diamond that carried a final price tag of over $8 million.
“Lucara is extremely pleased with the recovery of these rare, sizeable, fancy coloured diamonds, which have the potential to contribute meaningful value to our regular production of large, high-value type IIa diamonds,” chief executive, Eira Thomas, said in the statement.
The precious rocks will be put up for sale in December, during the company’s fourth quarter tender.
Lucara, which has focused efforts on the prolific Botswana mine this year, is close to completing a feasibility study into potential underground production and life of mine expansion at Karowe.
