Sourcing

98-Carat Diamond Found at Lesotho Mine

SourcingMay 25, 2017

98-Carat Diamond Found at Lesotho Mine

Gem Diamonds recovered the stone and also recently sold a 114-carat diamond and a nearly 9-carat pink from the same mine.

20170525_Gem-98-ct.jpg
Gem Diamonds recovered this 98.42-carat D color Type II diamond at its Letšeng mine in Lesotho. The stone will be sold in June.

London--Gem Diamonds’ recovery of larger diamonds from the Letšeng mine in Lesotho has picked up a bit, with the mining company finding two fairly big pieces of rough this month.

On May 3, Gem Diamonds recovered an 80.58-carat D color Type II diamond from the mine.

On May 23, it announced the recovery of an even bigger stone--a 98.42-carat diamond of the same quality. (Type II diamonds contain no nitrogen or boron impurities and are the most pure diamonds, chemically speaking.)

The mining company will sell both diamonds in June.

The announcement of the recovery of the 98-carat diamond came as the company provided its trading update for the first quarter ended March 31.

During that period, Gem Diamonds, which owns a 70 percent stake in the Letšeng mine in Lesotho and 100 percent of the currently mothballed Ghaghoo mine in Botswana, reported that it sold 39,950 carats of diamonds for a total of $65.4 million in the first three tenders of 2017.

That’s an average per-carat price of $1,636, up 13 percent from the $1,444 per carat achieved in Q4 2016.

Eleven diamonds went for more than $1 million each, generating revenue of $20.4 million.

This includes an 8.65-carat pink diamond that sold for $1.4 million or $164,855 per carat. That is the sixth-highest price Gem Diamonds has gotten for a Letšeng diamond.

The company also sold the 114.38-carat Type II, D color diamond found in April into a partnership.

In the first quarter, the company recovered 25,479 carats of diamonds, down 4 percent from the fourth quarter 2016 and 11 percent from the same period last year.

The pick-up in recovery of larger stones is good news for the London-based miner that’s sole current operating mine depends on the recovery of big, valuable stones that fetch a high per-carat price. (By comparison, larger diamond mining companies with multiple operations of varying qualities, like De Beers, will sell millions of carats in a quarter but achieve a lower price per carat.)

Last year, Gem Diamonds lost money, with the drop in the number of diamonds over 100 carats recovered impacting cash flow and revenue.

Commenting on the first quarter results, CEO Clifford Elphick said, “Letšeng has recovered larger, better quality diamonds during the period, and it is encouraging that during April and May, there was a notable improvement in the size and quality of diamonds recovered at Letšeng with the dollar per carat

achieved trending positively. The market for Letšeng’s high quality diamonds has remained firm over the period and this is anticipated to continue.”

As previously announced, geologist and former Rio Tinto executive Harry Kenyon-Slaney will become the chairman of Gem Diamonds on June 6, replacing the retiring Roger Davis.
Michelle Graffis the editor-in-chief at National Jeweler, directing the publication’s coverage both online and in print.

The Latest

Kendra Scott CEO Chris Blakeslee
MajorsJan 09, 2026
Kendra Scott Taps Activewear Exec as CEO

Chris Blakeslee has experience at Athleta and Alo Yoga. Kendra Scott will remain on board as executive chair and chief visionary officer.

Wrapped holiday present boxes
SurveysJan 09, 2026
U.S. Holiday Retail Sales Up 4%, Visa, Mastercard Say

The credit card companies’ surveys examined where consumers shopped, what they bought, and what they valued this holiday season.

Christie’s Kimberly Miller
AuctionsJan 09, 2026
Christie’s Names New Global Managing Director for Luxury

Kimberly Miller has been promoted to the role.

Recipients Collage 2025 - NJ (1872 x 1050 px) (1872 x 1052 px).png
Brought to you by
Impacting Tomorrow Today

How Jewelers of America’s 20 Under 40 are leading to ensure a brighter future for the jewelry industry.

Lionheart Serenity Opal Amulet Charm
CollectionsJan 09, 2026
Piece of the Week: Lionheart’s ‘Serenity’ Opal Charm

The “Serenity” charm set with 13 opals is a modern amulet offering protection, guidance, and intention, the brand said.

Weekly QuizJan 08, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Hannah Dodd and Claudia Jessie in Pandora Bridgerton campaign
CollectionsJan 08, 2026
Pandora’s New ‘Bridgerton’ Jewels Celebrate Bees, Bows, and Blooms

“Bridgerton” actresses Hannah Dodd and Claudia Jessie star in the brand’s “Rules to Love By” campaign.

Ana Khouri logo
Events & AwardsJan 08, 2026
Ana Khouri To Receive 2026 Gem Award for High Jewelry Excellence

Founded by jeweler and sculptor Ana Khouri, the brand is “expanding the boundaries of what high jewelry can be.”

roseco-catalog.png
Brought to you by
Roseco Releases New Full-Line Catalog

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

Stuller’s Color of the Year for 2026, “Signature Red”
TrendsJan 08, 2026
Stuller’s Color of the Year Is a Stark Contrast to Pantone’s White

The jewelry manufacturer and supplier is going with a fiery shade it says symbolizes power and transformation.

Gracie Abrams Chanel Coco Crush
CollectionsJan 08, 2026
Gracie Abrams To Front New Chanel Jewelry Campaign

The singer-songwriter will make her debut as the French luxury brand’s new ambassador in a campaign for its “Coco Crush” jewelry line.

Bobbi L. Avery, Jeffery Bolling, Britney Phillips, and Lindsay Salvo
MajorsJan 08, 2026
Diamond Council of America Names New Board Directors

The nonprofit’s new president and CEO, Annie Doresca, also began her role this month.

Headshot of National Jewler columnist Peter Smith
ColumnistsJan 07, 2026
Peter Smith: Physical Retail—The Beginning or the End?

As the shopping mall model evolves and online retail grows, Smith shares his predictions for the future of physical stores.

Pinar Hakim Rainbow Seahorse Pendant, Nue Fine Jewelry Irene Charm, Susannah King Venus Ring
Events & AwardsJan 07, 2026
Melee Adds 13 New Designers to NYC Show

The trade show is slated for Jan. 31-Feb. 2 at The Lighthouse in New York City's Chelsea neighborhood.

Akiva Gil garnet ring
TrendsJan 07, 2026
Amanda’s Style File: Go for Garnet

January’s birthstone comes in a rainbow of colors, from the traditional red to orange, purple, and green.

Police cars with lights on
CrimeJan 06, 2026
2 Jewelers Arrested After TraxNYC Diamond District Brawl

Footage of a fight breaking out in the NYC Diamond District was viewed millions of times on Instagram and Facebook.

Rio Grande xTool F2 Ultra Portable Laser Engraver Bundle
MajorsJan 06, 2026
Rio Grande Says These Are the Top Personalization Tools for 2026

The supplier has a curated list of must-have tools for jewelers doing in-house custom work this year.

Zales storefront
MajorsJan 06, 2026
Zales Tests Out A New Look

The Signet Jewelers-owned store, which turned 100 last year, calls its new concept stores “The Edit.”

Linda Coutu
MajorsJan 06, 2026
LeachGarner Appoints New Director of Sales

Linda Coutu is rejoining the precious metals provider as its director of sales.

Jenna Blake diamond Fan earrings
TrendsJan 05, 2026
Amanda’s Style File: New Year’s Edition

Sparkle with festive diamond jewelry as we celebrate the beginning of 2026.

Ben Nighthorse Campbell
IndependentsJan 05, 2026
Jeweler Ben Nighthorse Campbell Dies at 92

The master jeweler, Olympian, former senator, and Korean War veteran founded the brand Nighthorse Jewelry.

Jacquie Aiche Alien Heart Eye Inlay Necklace, Cicada Dragonfly Brooch, Harkness After the Rain Earrings
TrendsJan 05, 2026
Pinterest 2026 Trend Report: Brooches, Bold Gold, Cool Blue

In its annual report, Pinterest noted an increase in searches for brooches, heirloom jewelry, and ‘80s luxury.

Saks Fifth Avenue flagship window installation
MajorsJan 02, 2026
Marc Metrick Out as CEO of Saks Global

Executive Chairman Richard Baker will take over the role as rumors swirl that a bankruptcy filing is imminent for the troubled retailer.

Couture Retailer Liaison Jan Mohr
Events & AwardsJan 02, 2026
Jan Mohr, Couture’s ‘North Star,’ Dies at 71

Mohr had just retired in June after more than two decades as Couture’s retailer liaison.

Shekhar Shah Real Gems
SourcingJan 02, 2026
IDCA Elects New President, Board of Directors

Shekhar Shah of Real Gems Inc. will serve as president of the Indian Diamond & Colorstone Association in 2026.

Lalaounis good luck charm 2026
CollectionsJan 02, 2026
Lalaounis’ 2026 Good Luck Charm Speaks to Resilience

This year’s good luck charm features the mythical horse Pegasus, and is our first Piece of the Week of the new year.

Collage of NationalJeweler.com’s most-read stories of 2025
EditorsDec 31, 2025
The Top 5 Stories of 2025

Articles about crime, engagement rings, and a necklace worn in the World Series generated the most interest among readers.

Becka Johnson Kibby
MajorsDec 30, 2025
Becka Johnson Kibby to Lead Edge Retail Academy

As part of the leadership transition, Sherry Smith will take on the role of vice president of coaching strategy and development.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy