Sourcing

‘100 Carats’ Exhibition Opens at LA Museum

SourcingFeb 14, 2024

‘100 Carats’ Exhibition Opens at LA Museum

A new display at the Natural History Museum of Los Angeles County features dozens of gemstones each weighing 100 carats or more.

Jonker I Diamonds
The 125-carat Jonker I Diamond is the centerpiece of the exhibit. The largest stone cut from the world-famous Jonker Diamond, it has not been on public view for decades. (Photo courtesy of NHMLAC)
Los Angeles—An exhibition featuring rare gemstones weighing at least 100 carats each is on view now at the Natural History Museum of Los Angeles County (NHMLAC). 

The exhibition, “100 Carats: Icons of the Gem World,” showcases more than 30 gemstones. 

Of those, 20 stones weigh more than 100 carats each. This grouping includes the centerpiece of the collection and one of the largest cut diamonds in the world, the Jonker I Diamond, pictured at the top of the story. 

The 125-carat diamond is the largest stone cut from the Jonker Diamond—the fourth-largest diamond in the world when it was discovered in 1934. The public has not seen this diamond since it was bought by a private buyer in 1977, the museum said.

Though it has been showcased by royalty and Hollywood stars over the years, this is the Jonker I’s first time on display in a museum in more than eight decades, thanks to current owner Ibrahim Al-Rashid, who lent the stone to the museum for the exhibition.

“The Jonker is one of the largest and most famous diamonds ever unearthed,” said Al-Rashid, who is also chairman of Miami-based Limestone Asset Management. 

“Its beauty and history are compelling. I'm grateful to have [The Jonker I] on display for viewers to enjoy for the first time in many decades.”

Also on display, for the first time ever, is the 100.06-carat sapphire, “The Miracle,” which was discovered last year, as mentioned in the promotional video linked below.

The Miracle sapphire
“The Miracle” is making its debut to the public in the “100 Carats” exhibit. (Photo courtesy of NHMLAC)


A variety of other colored gemstones are on view as well, including the “Crown of Colombia,” a 241.04-carat Colombian emerald, and “The Scarlet Red,” a 112.68-carat rubellite.

See The Gemstones 

“The collection presented within ‘100 Carats’ is unrivaled in both importance and rarity within the gem world,” said Dr. Lori Bettison-Varga, president and director of NHMLAC.  

“Gems of such magnificent size and quality have never been displayed before in this quantity in one exhibition. This unique exhibition captures the brilliance of our mineral sciences collection and offers a breathtaking experience for our visitors this winter and beyond.” 

 Related stories will be right here … 

This exhibition was organized by NHMLAC in collaboration with Robert Procop Exceptional Jewels, the collection from which comes, among others, “The Blue Star,” a 108-carat aquamarine, and “The Imperial,” a 111-carat green tourmaline.  


The 100-carat loose stones are displayed inside the museum’s Hixon Gem Vault, and outside the vault, mounted jewelry is on view, featuring pieces with gems weighing 50 to 100 carats. 

While these gems are beautiful and brilliant, the museum said, each gem is also a “minor geologic miracle,” their existence evidence of mountain-building events, volcanic eruptions, and the unforgiving pressures and temperatures of the Earth’s interior.  

This exhibit allows guests and scientists a glimpse into Earth's geological processes and circumstances that happened millions of years ago to form them in the first place, while also illuminating the long and rich history of art and culture through the ages. 

“The show is a once-in-a-lifetime event,” said NHMLAC’s Curator of Mineral Sciences Dr. Aaron Celestian.  

“The rarity of these gems cannot be overstated. Visitors will be able to see tremendous examples of gemstones in a rainbow of vivid colors that have been expertly cut to display their remarkable brilliance. I am thrilled that we’ve been able to bring these giant gems together for the first time.” 


NHM’s 6,000-square-foot Gem and Mineral Hall opened in 1978 and features exhibition halls of minerals, rocks, gems, ores, and meteorites. 

The permanent collection features roughly 175,000 specimens, including fine gem collections from Myanmar (formerly Burma), South Africa, Colombia, Sri Lanka, and other destinations.

The “100 Carats: Icons of the Gem World” exhibit opened Dec. 8, 2023, and will close April 21. Exhibition programming and hours may vary. 

Entrance is included in the price of admission to NHMLAC or free for members. 

More information is available on the museum’s website.  
Lauren McLemoreis the associate editor, gemstones at National Jeweler, covering sourcing, pricing and other developments.

The Latest

Nest doorbell camera footage of suspect in Nancy Guthrie abduction
CrimeFeb 13, 2026
JSA Offering $10K Reward in Nancy Guthrie Case

Guthrie, the mother of “Today” show host Savannah Guthrie, was abducted just as the Tucson gem shows were starting.

Butterfield Jewelers going out of business sale ad
IndependentsFeb 13, 2026
97-Year-Old New Mexico Jewelry Store To Close

Butterfield Jewelers in Albuquerque, New Mexico, is preparing to close as members of the Butterfield family head into retirement.

Paul Morelli Rosebud Necklace
CollectionsFeb 13, 2026
A ‘Rosebud’ Necklace for Valentine’s Day

Paul Morelli’s “Rosebud” necklace, our Piece of the Week, uses 18-karat rose, green, and white gold to turn the symbol of love into jewelry.

MJSA Apprenticeship Guide
Brought to you by
The MJSA Mentor & Apprenticeship Program: Attracting & Training the Next Generation of Bench Jewelers

Launched in 2023, the program will help the passing of knowledge between generations and alleviate the shortage of bench jewelers.

Jewelers for Children
MajorsFeb 13, 2026
JFC Announces New Beneficiaries

The nonprofit has welcomed four new grantees for 2026.

Weekly QuizFeb 12, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Saks Fifth Avenue Club personal styling suite in Austin Texas
MajorsFeb 12, 2026
These 8 Saks Fifth Avenue Stores Are Closing

Parent company Saks Global is also closing nearly all Saks Off 5th locations, a Neiman Marcus store, and 14 personal styling suites.

Tudor Heart pendant on display at British Museum
CollectionsFeb 12, 2026
British Museum Raises $5M to Keep Jewel Linked to Henry VIII, Katherine of Aragon

It is believed the 24-karat heart-shaped enameled pendant was made for an event marking the betrothal of Princess Mary in 1518.

JamAlert 1872x1052.png
Brought to you by
How Jewelers Can Fight Back Against Cell Jammers

Criminals are using cell jammers to disable alarms, but new technology like JamAlert™ can stop them.

Kering Logo
Events & AwardsFeb 12, 2026
Kering Opens Entries for 2026 Sustainability-Focused Award

The “Kering Generation Award x Jewelry” returns for its second year with “Second Chance, First Choice” as its theme.

Halle Berry’s vintage diamond and sapphire engagement ring
TrendsFeb 11, 2026
Halle Berry’s Retro Engagement Ring Is a Sapphire-Set Stunner

Sourced by For Future Reference Vintage, the yellow gold ring has a round center stone surrounded by step-cut sapphires.

Francesca’s storefront
MajorsFeb 11, 2026
Francesca’s Files for Chapter 11 Bankruptcy Again

The clothing and accessories chain announced last month it would be closing all of its stores.

Zales x Sweethearts Capsule Collection Heart Charms
CollectionsFeb 11, 2026
Zales Turns Sweethearts Into Jewelry for Valentine’s Day Collection

The “Zales x Sweethearts” collection features three mystery heart charms engraved with classic sayings seen on the Valentine’s Day candies.

2026 Gemvision Symposium
TechnologyFeb 11, 2026
Gemvision Symposium 2026 Slated for April

The event will include panel discussions, hands-on demonstrations of new digital manufacturing tools, and a jewelry design contest.

The Jewelry Symposium
Events & AwardsFeb 11, 2026
TJS Announces Roundtable, Launches New App

Registration is now open for The Jewelry Symposium, set to take place in Detroit from May 16-19.

Bad Bunny Performing Super Bowl LX Halftime Show
TrendsFeb 10, 2026
Bad Bunny Wears Football-Shaped ‘Desert Diamond’ for Halftime Performance

Lady Gaga, Cardi B, and Karol G also went with diamond jewelry for Bad Bunny’s Super Bowl halftime show honoring Puerto Rico.

Miraki Jewels heart diamond signet ring
SurveysFeb 10, 2026
Shoppers to Spend Big on Jewelry This Valentine’s Day, Says NRF

Jewelry is expected to be the No. 1 gift this year in terms of dollars spent.

Pomellato Nudo toi et moi ring
FinancialsFeb 10, 2026
Kering Plans Transformation as 2025 Sales Sink 13%

As star brand Gucci continues to struggle, the luxury titan plans to announce a new roadmap to return to growth.

Stuller color of the year 2026 Signature Red jewelry and gemstones
SourcingFeb 10, 2026
AGTA To Debut ‘Stuller Color of the Year’ Spectrum Awards Category

The new category asks entrants for “exceptional” interpretations of the supplier’s 2026 color of the year, which is “Signature Red.”

Stock image of loose polished diamonds
Policies & IssuesFeb 09, 2026
U.S., India Trade Deal One Step Closer to Being Finalized

The White House issued an official statement on the deal, which will eliminate tariffs on loose natural diamonds and gemstones from India.

CASE Awards Graphic
Events & AwardsFeb 09, 2026
JA Now Accepting Entries for 2026 CASE Awards

Entries for the jewelry design competition will be accepted through March 20.

James Free Jewelers Dayton Ohio store
IndependentsFeb 09, 2026
James Free Jewelers Unveils Revamped Flagship

The Ohio jeweler’s new layout features a curated collection of brand boutiques to promote storytelling and host in-store events.

KIL NYC The Pierced Padlock Wounded
TrendsFeb 09, 2026
These 14 Jewels Will Melt Your Heart This Valentine’s Day

From heart motifs to pink pearls, Valentine’s Day is filled with jewelry imbued with love.

Stock image of a gavel
CrimeFeb 06, 2026
Florida Man Sentenced After Selling Fake Native American Jewelry for a Decade

Prosecutors say the man attended arts and craft fairs claiming he was a third-generation jeweler who was a member of the Pueblo tribe.

Luciano Rodembusch
FinancialsFeb 06, 2026
Pandora’s North America GM Departs Amid Executive Changes

New CEO Berta de Pablos-Barbier shared her priorities for the Danish jewelry company this year as part of its fourth-quarter results.

Cece Jewellery Bespoke Wuthering Heights Signet Rings on Margot Robbie and Jacob Elordi
TrendsFeb 06, 2026
Margot Robbie, Jacob Elordi Wear Matching Cece Jewellery Signet Rings

Our Piece of the Week picks are these bespoke rings the “Wuthering Heights” stars have been spotted wearing during the film’s press tour.

Pandora platinum
MajorsFeb 05, 2026
Pandora to Begin Selling Platinum-Plated Jewelry

The introduction of platinum plating will reduce its reliance on silver amid volatile price swings, said Pandora.

Entrance to the Jwaneng diamond mine in Botswana
SourcingFeb 05, 2026
De Beers Lowers Production Guidance for 2026, Anglo Mulls Another Writedown

It would be the third impairment charge in three years on De Beers Group, which continues to grapple with a “challenging” diamond market.

×

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