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Explained: World's Second Largest Diamond Worth Over $40 Mn Mined Using X-Ray Tech In Botswana

Lucara Botswana, an arm of Lucara Diamond, unearthed a massive 2,492-carat diamond, billed as the second largest in the world. The Canadian mining company found the stone in its Karowe diamond mine in northeastern Botswana using X-ray detection technology. Insiders say the precious stone may fetch over $40 million. Industry leaders say the Botswana mine of Lucara might discover some more extraordinary stones with its tech.

The 2492 carat diamond was discovered in the Karowe mine in Botswana of Lucara Diamond Company. Botswana is one of the world's largest producers of diamonds, which constitute its main source of income, representing 30% of GDP and 80% of its exports.
Botswana's President Mokgweetsi Masisi looks at a large diamond discovered in Botswana at his office in Gaborone on August 22, 2024. (AFP)
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By ETV Bharat Tech Team

Published : Aug 23, 2024, 11:49 AM IST

Updated : Aug 24, 2024, 11:35 AM IST

Gaborone, Botswana: A massive 2,492-carat diamond, which is billed as the second largest in the world, has been extracted in Botswana, a Canadian diamond mining company that found the stone had announced. The stone was mined from its Karowe diamond mine in northeastern Botswana and the extraction was made using the X-ray detection technology, Lucara Diamond said in a statement on Thursday.

Though the company did not provide any estimation value of the precious stone. The carat scale measure of the stone is second only to the 3,106-carat Cullinan Diamond discovered in South Africa in 1905. "We are ecstatic about the recovery of this extraordinary 2,492-carat diamond," Lucara president William Lamb said in the statement.

Mega Diamond Recovery X-ray Tech

This find was "one of the largest rough diamonds ever unearthed" and detected using the company's Mega Diamond Recovery (MDR) X-ray Transmission (XRT) technology installed in 2017 to identify and preserve large, high-value diamonds, the statement said.

The 2492 carat diamond was discovered in the Karowe mine in Botswana of Lucara Diamond Company. Botswana is one of the world's largest producers of diamonds, which constitute its main source of income, representing 30% of GDP and 80% of its exports.
Alarge diamond discovered in Botswana is placed on a table inside the office of Botswana's President Mokgweetsi Masisi in Gaborone on August 22, 2024. (AFP)

"The stone was recovered from the processing of EM/PK(S) kimberlite, the dominant ore type that Lucara will continue to target during the first years of the Company's underground mining operations," it added.

President congratulates Lucara

The managing director of Lucara Botswana, Naseem Lahri, presented the translucent stone, which is the size of a palm, to President Mokgweetsi Masisi at his office later Thursday. "I'm told this is the largest diamond to be discovered in Botswana to date and the second in the world," Masisi said, congratulating the company on the find. "This is precious."

Botswana's diamond economy

Botswana is one of the world's largest producers of diamonds which are its main source of income, accounting for 30 percent of GDP and 80 percent of its exports, according to International Monetary Fund figures.

The arid and sparsely populated country, home to around 2.5 million people, was poor at the time of its independence from Britain in 1966. Diamonds were discovered a year later and today the country is the world's largest producer by value, the IMF says.

The 2492 carat diamond was discovered in the Karowe mine in Botswana of Lucara Diamond Company. Botswana is one of the world's largest producers of diamonds, which constitute its main source of income, representing 30% of GDP and 80% of its exports.
Botswana's President Mokgweetsi Masisi holds the 2,492-carat diamond that was unearthed at one of its mines and will be put on show, Thursday, Aug. 22, 2024, in Gaborone. (AP)

Lucara says it pays a royalty of 10 percent of the gross sales value of diamonds produced from Karowe to the government, regardless of whether the diamond is sold rough or polished. "With a diamond of this magnitude, I can see roads being built," said Masisi, as he posed for pictures with the huge stone.

Will likely see more

Tobias Kormind, managing director of Europe's largest online diamond jeweller, 77 Diamonds, confirmed it was the largest rough diamond to be unearthed since the Cullinan Diamond, parts of which adorn Britain's crown jewels.

"This discovery is largely thanks to newer technology that allows larger diamonds to be extracted from the ground without breaking into pieces. So we will likely see more where this came from," he said.

Lucaro's Sewelo relegated

Before the find was announced on Thursday, the largest diamond discovered in Botswana was a 1,758-carat stone mined by Lucara at the Karowe mine in 2019 and named Sewelo.

The 2492 carat diamond was discovered in the Karowe mine in Botswana of Lucara Diamond Company. Botswana is one of the world's largest producers of diamonds, which constitute its main source of income, representing 30% of GDP and 80% of its exports.
A person holds a 2,492-carat diamond which was found in the country and on show, in Gaborone, Botswana, Thursday, Aug. 22, 2024. (AP)

Lucara found a 1,174-carat diamond stone in Botswana in 2021 using the same X-ray technology. The mine started production in 2012 and has since then sold 216 diamonds for more than $1 million each and more than 11 single diamonds for more than $10 million each, it says.

Likely to fetch $40 mn

The diamond mining industry has been hurt by lab-grown versions and weaker spending. "Diamond prices are going through a difficult time now," Masisi said. "But every diamond is precious and valuable. We have to optimise and get the best price for this diamond."

The Financial Times newspaper reported that people close to Lucara, who were not identified, estimated the stone could be worth upwards of $40 million. (with AFP inputs)

Gaborone, Botswana: A massive 2,492-carat diamond, which is billed as the second largest in the world, has been extracted in Botswana, a Canadian diamond mining company that found the stone had announced. The stone was mined from its Karowe diamond mine in northeastern Botswana and the extraction was made using the X-ray detection technology, Lucara Diamond said in a statement on Thursday.

Though the company did not provide any estimation value of the precious stone. The carat scale measure of the stone is second only to the 3,106-carat Cullinan Diamond discovered in South Africa in 1905. "We are ecstatic about the recovery of this extraordinary 2,492-carat diamond," Lucara president William Lamb said in the statement.

Mega Diamond Recovery X-ray Tech

This find was "one of the largest rough diamonds ever unearthed" and detected using the company's Mega Diamond Recovery (MDR) X-ray Transmission (XRT) technology installed in 2017 to identify and preserve large, high-value diamonds, the statement said.

The 2492 carat diamond was discovered in the Karowe mine in Botswana of Lucara Diamond Company. Botswana is one of the world's largest producers of diamonds, which constitute its main source of income, representing 30% of GDP and 80% of its exports.
Alarge diamond discovered in Botswana is placed on a table inside the office of Botswana's President Mokgweetsi Masisi in Gaborone on August 22, 2024. (AFP)

"The stone was recovered from the processing of EM/PK(S) kimberlite, the dominant ore type that Lucara will continue to target during the first years of the Company's underground mining operations," it added.

President congratulates Lucara

The managing director of Lucara Botswana, Naseem Lahri, presented the translucent stone, which is the size of a palm, to President Mokgweetsi Masisi at his office later Thursday. "I'm told this is the largest diamond to be discovered in Botswana to date and the second in the world," Masisi said, congratulating the company on the find. "This is precious."

Botswana's diamond economy

Botswana is one of the world's largest producers of diamonds which are its main source of income, accounting for 30 percent of GDP and 80 percent of its exports, according to International Monetary Fund figures.

The arid and sparsely populated country, home to around 2.5 million people, was poor at the time of its independence from Britain in 1966. Diamonds were discovered a year later and today the country is the world's largest producer by value, the IMF says.

The 2492 carat diamond was discovered in the Karowe mine in Botswana of Lucara Diamond Company. Botswana is one of the world's largest producers of diamonds, which constitute its main source of income, representing 30% of GDP and 80% of its exports.
Botswana's President Mokgweetsi Masisi holds the 2,492-carat diamond that was unearthed at one of its mines and will be put on show, Thursday, Aug. 22, 2024, in Gaborone. (AP)

Lucara says it pays a royalty of 10 percent of the gross sales value of diamonds produced from Karowe to the government, regardless of whether the diamond is sold rough or polished. "With a diamond of this magnitude, I can see roads being built," said Masisi, as he posed for pictures with the huge stone.

Will likely see more

Tobias Kormind, managing director of Europe's largest online diamond jeweller, 77 Diamonds, confirmed it was the largest rough diamond to be unearthed since the Cullinan Diamond, parts of which adorn Britain's crown jewels.

"This discovery is largely thanks to newer technology that allows larger diamonds to be extracted from the ground without breaking into pieces. So we will likely see more where this came from," he said.

Lucaro's Sewelo relegated

Before the find was announced on Thursday, the largest diamond discovered in Botswana was a 1,758-carat stone mined by Lucara at the Karowe mine in 2019 and named Sewelo.

The 2492 carat diamond was discovered in the Karowe mine in Botswana of Lucara Diamond Company. Botswana is one of the world's largest producers of diamonds, which constitute its main source of income, representing 30% of GDP and 80% of its exports.
A person holds a 2,492-carat diamond which was found in the country and on show, in Gaborone, Botswana, Thursday, Aug. 22, 2024. (AP)

Lucara found a 1,174-carat diamond stone in Botswana in 2021 using the same X-ray technology. The mine started production in 2012 and has since then sold 216 diamonds for more than $1 million each and more than 11 single diamonds for more than $10 million each, it says.

Likely to fetch $40 mn

The diamond mining industry has been hurt by lab-grown versions and weaker spending. "Diamond prices are going through a difficult time now," Masisi said. "But every diamond is precious and valuable. We have to optimise and get the best price for this diamond."

The Financial Times newspaper reported that people close to Lucara, who were not identified, estimated the stone could be worth upwards of $40 million. (with AFP inputs)

Last Updated : Aug 24, 2024, 11:35 AM IST
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