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910-Carat Diamond Discovered in Lesotho Is the 5th-Largest Ever

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It may be worth $50M+.

The prolific Letšeng mine in the tiny southern Africa kingdom of Lesotho has produced another mammoth gem-quality diamond. Weighing 910 carats, the D-color, Type IIa stone is the largest ever mined at Letšeng and the fifth-largest gem-quality diamond ever recovered.

INSTORE letsengdiamond1

This stone is the fifth-largest gem-quality diamond ever recovered. Credit: Image via Twitter.com/GemDiamondsLtd.

The yet-to-be-named gem is probably worth more than $50 million based on recent sales of colossal diamonds exhibiting nearly identical characteristics.

For example, the 1,109-carat Lesedi La Rona (#2 on the all-time list) was sold in September of 2017 for $53 million. In May of 2016, the 812-carat Constellation (#7 on the all-time list) fetched $63 million. Sourced at Lucara’s Karowe mine in Botswana, both D-color diamonds were rated Type IIa, which means they are chemically pure with no traces of nitrogen or boron impurities.

Despite having a land mass slightly smaller than Maryland, Lesotho is an international powerhouse when it comes to turning out huge, top-quality stones.

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“Since Gem Diamonds acquired Letšeng in 2006, the mine has produced some of the world’s most remarkable diamonds, including the 603-carat Lesotho Promise,” noted Gem Diamonds CEO Clifford Elphick. “However, this exceptional top-quality diamond is the largest to be mined to date and highlights the unsurpassed quality of the Letšeng mine.”

Here’s a list of the most newsworthy stones to come from Letšeng, which is billed as the highest dollar-per-carat kimberlite mine in the world.

2006 – Lesotho Promise (603 carats)

2011 – Letšeng Star (550 carats)

2007 – Lesotho Legacy (493 carats)

2008 – Leseli La Letšeng (478 carats)

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2015 – Letšeng Dynasty (357 carats)

2015 – Letšeng Destiny (314 carats)

2014 – Unnamed Yellow (299 carats)

The newly unveiled 910-carat rough diamond has an equivalent weight of 182 grams, or 6.41 ounces. A baseball, by comparison, weighs 5.25 ounces.

The fifth-largest gem-quality diamond ever mined is less than one-third the weight of the granddaddy of them all — the 3,106-carat Cullinan Diamond, which was discovered in South Africa in 1905. Finished gems cut from the Cullinan Diamond include the Cullinan I (530.20 carats) and the Cullinan II (317.4 carats).

The United Kingdom-based Gem Diamonds holds a 70% stake in the Letšeng mine with the government of Lesotho owning the remaining 30 percent.

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HOWARD COHEN is the Shoreham, NY-based editor of The Jeweler Blog, a daily blog ghost-written for retail jewelers. Cohen, a long-time industry veteran, is dedicated to making social media tasks simple and affordable for every jeweler. For more information, visit thejewelerblog.com or contact Cohen at 631-821- 8867, hscohen60@gmail.com. Websites: thejewelerblog.comthejewelerblog.wordpress.com.

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She Wanted to Spend More Time with Her Kids. She Called Wilkerson.

Your children are precious. More precious than gold? Absolutely! Just ask Lesley Ann Davis, owner of Lesley Ann Jewels, an independent jewelry store that — until the end of 2023 — had quite a following in Houston, Texas. To spend more time with her four sons, all in high school, she decided to close her store. Luckily, she was familiar with Wilkerson and called them as soon as she knew she wanted to move on to bigger, better and more family-focused things. Was she happy with her decision? Yes, she was. Says Davis, “Any owner looking to make that life change, looking to retire, looking to close, looking for a pause in their career, I would recommend Wilkerson. Hands down!”

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910-Carat Diamond Discovered in Lesotho Is the 5th-Largest Ever

mm

Published

on

It may be worth $50M+.

The prolific Letšeng mine in the tiny southern Africa kingdom of Lesotho has produced another mammoth gem-quality diamond. Weighing 910 carats, the D-color, Type IIa stone is the largest ever mined at Letšeng and the fifth-largest gem-quality diamond ever recovered.

INSTORE letsengdiamond1

This stone is the fifth-largest gem-quality diamond ever recovered. Credit: Image via Twitter.com/GemDiamondsLtd.

The yet-to-be-named gem is probably worth more than $50 million based on recent sales of colossal diamonds exhibiting nearly identical characteristics.

For example, the 1,109-carat Lesedi La Rona (#2 on the all-time list) was sold in September of 2017 for $53 million. In May of 2016, the 812-carat Constellation (#7 on the all-time list) fetched $63 million. Sourced at Lucara’s Karowe mine in Botswana, both D-color diamonds were rated Type IIa, which means they are chemically pure with no traces of nitrogen or boron impurities.

Advertisement

Despite having a land mass slightly smaller than Maryland, Lesotho is an international powerhouse when it comes to turning out huge, top-quality stones.

“Since Gem Diamonds acquired Letšeng in 2006, the mine has produced some of the world’s most remarkable diamonds, including the 603-carat Lesotho Promise,” noted Gem Diamonds CEO Clifford Elphick. “However, this exceptional top-quality diamond is the largest to be mined to date and highlights the unsurpassed quality of the Letšeng mine.”

Here’s a list of the most newsworthy stones to come from Letšeng, which is billed as the highest dollar-per-carat kimberlite mine in the world.

2006 – Lesotho Promise (603 carats)

2011 – Letšeng Star (550 carats)

2007 – Lesotho Legacy (493 carats)

Advertisement

2008 – Leseli La Letšeng (478 carats)

2015 – Letšeng Dynasty (357 carats)

2015 – Letšeng Destiny (314 carats)

2014 – Unnamed Yellow (299 carats)

The newly unveiled 910-carat rough diamond has an equivalent weight of 182 grams, or 6.41 ounces. A baseball, by comparison, weighs 5.25 ounces.

The fifth-largest gem-quality diamond ever mined is less than one-third the weight of the granddaddy of them all — the 3,106-carat Cullinan Diamond, which was discovered in South Africa in 1905. Finished gems cut from the Cullinan Diamond include the Cullinan I (530.20 carats) and the Cullinan II (317.4 carats).

Advertisement

The United Kingdom-based Gem Diamonds holds a 70% stake in the Letšeng mine with the government of Lesotho owning the remaining 30 percent.


HOWARD COHEN is the Shoreham, NY-based editor of The Jeweler Blog, a daily blog ghost-written for retail jewelers. Cohen, a long-time industry veteran, is dedicated to making social media tasks simple and affordable for every jeweler. For more information, visit thejewelerblog.com or contact Cohen at 631-821- 8867, hscohen60@gmail.com. Websites: thejewelerblog.comthejewelerblog.wordpress.com.

Advertisement

SPONSORED VIDEO

She Wanted to Spend More Time with Her Kids. She Called Wilkerson.

Your children are precious. More precious than gold? Absolutely! Just ask Lesley Ann Davis, owner of Lesley Ann Jewels, an independent jewelry store that — until the end of 2023 — had quite a following in Houston, Texas. To spend more time with her four sons, all in high school, she decided to close her store. Luckily, she was familiar with Wilkerson and called them as soon as she knew she wanted to move on to bigger, better and more family-focused things. Was she happy with her decision? Yes, she was. Says Davis, “Any owner looking to make that life change, looking to retire, looking to close, looking for a pause in their career, I would recommend Wilkerson. Hands down!”

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