‘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.

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.
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.”
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.
The Latest

JSA and Jewelers Mutual shared advice on spotting suspicious behavior, combatting cell phone jammers, and staying safe at home.

The fancy light blue diamond is estimated to fetch up to $2.6 million at Elmwood’s next week.

Experience gemstones with greater precision and comfort than ever before.

“Secret Language of Victorian Jewelry” unveils the meaning behind the symbols, motifs, and gemstones used in Victorian-era jewelry.


KIRAJewels.one gives retailers access to more than 500 SKUs of lab-grown diamond rings, earrings, necklaces, and bracelets.

This holiday season, look to pieces that will help to fill out customers’ everyday diamond jewelry wardrobe, experts say.

Submit your pieces for a chance to win in this year's competition.

Paul’s Jewelers sells coffee, chocolate, and cookies from a custom gold-wrapped trailer parked outside the store starting at 7 a.m.

Part of its brand relaunch, the marketing around the campaign includes a contest involving a jacket set with 550 diamonds.

The curation, opening soon at the Crystal Bridges Museum of American Art, honors the jeweler’s heritage through a distinctly American lens.

The jewelry giant has partnered with the famed makeup artist to create a colorful new collection of charms and rings.

The association will mark the milestone at its convention next month.

The jeweler donated school supplies to Memphis, Tennessee, students during the event combining basketball and mentorship.

A federal judge denied Pandora’s motion to dismiss Foundrae’s claim for copyright infringement of its medallions.

People aren’t thinking rationally when they are buying luxury products, and we shouldn’t be selling them that way, Peter Smith writes.

The Baltimore Business Journal recognized the entrepreneur for her leadership in business and the jewelry industry.

The facility is located within SEEPZ and is GCAL by Sarine’s second location in India, joining its existing grading lab in Surat.

The four-day show is slated for Nov. 19-22 at the Metropolitan Pavilion in New York City’s Chelsea neighborhood.

Offered at Sotheby’s Hong Kong, the one-of-a-kind white gold watch now holds the title of most valuable Cartier wristwatch sold at auction.

Bernstein-Gulla has been working in the jewelry industry for 40 years, most recently as chief engagement officer for Hill & Co.

The relocated Glendale store, now at The Americana at Brand, was designed to be a contemporary “timepiece haven” inspired by luxury resorts.

The top lot of the auction house’s Hong Kong jewelry sale was an Art Deco Mauboussin necklace with ruby beads, which sold for $2 million.

Retailers and manufacturers headed to the Capitol this week to discuss tariff exemptions for diamonds and gemstones, among other issues.

Our Piece of the Week is a pair of drop earrings from the “Sway” collection featuring Nanis’ first use of mirror-polished gold.

SynthDetect 2 can scan a full tray in less than five minutes, De Beers said, making it six times faster than its predecessors.

Two metal detectorists discovered the ring, which may have belonged to English noblewoman Matilda of Lancaster, in Suffolk.


























