Events & AwardsMay 17, 2022
‘Cartier and Islamic Art’ Exhibition Opens in DallasSourcingJun 13, 2022
New Smithsonian Exhibit Highlights ‘American Diamonds’
Two of the four stones on display are record holders.
The four diamonds displayed in the new “Great American Diamonds” exhibit at the National Museum of Natural History are (from left to right): the Colorado Diamond Crystal, the Freedom Diamond, the Uncle Sam Diamond, and the Canary Diamond. (Image courtesy Department of Mineral Sciences; photo by James Tiller and Brittany M. Hance, Smithsonian Institution.)
Washington, D.C.—The Smithsonian’s National Museum of Natural History has debuted an exhibit with a focus on American-mined diamonds.
“Great American Diamonds” opened Friday, June 10, displaying four top stones found in the U.S.
This includes the “Freedom Diamond,” the largest faceted diamond to be sourced in the U.S.
The cushion-cut stone came from a 28-carat diamond recovered from the Kelsey Lake Mine in Colorado in 1997. It’s now set in a ring.
The Smithsonian’s exhibit also includes the flawless emerald-cut 12.4-carat pinkish brown “Uncle Sam Diamond.”
Fashioned from a crystal weighing 40.23 carats, making it the largest rough diamond found in the U.S., the stone was discovered at the Crater of Diamonds mine in Arkansas in 1924.
The diamond was feared to have been lost but recently resurfaced in a private collection. “Great American Diamonds” will be the first time it’s being displayed in more than half a century.
Crater of Diamonds in Arkansas, which is now a state park and one of the world’s only diamond-bearing sites accessible to the public, and the Kelsey Lake Mine in Colorado are the only two diamond mines that have operated in the United States.
These two sites produced tens of thousands of carats of rough diamonds between them, but neither was commercially successful with both closing after less than a decade in operation.
The Uncle Sam Diamond and Freedom Diamond are now part of the Smithsonian’s National Gem and Mineral Collection. They came as gifts from Peter Buck and Robert E. and Kathy G. Mau respectively, and were donated to the museum’s national collection within a month of each other.
They are displayed alongside two other American diamonds from the museum’s collection.
The first is the “Canary Diamond,” a golden-yellow diamond crystal weighing nearly 18 carats also sourced from the Arkansas mine.
It was discovered in 1917 and acquired by famed civil engineer and mineral collector Washington Roebling, whose son donated it to the Smithsonian nearly a century ago.
The other is the 6.5-carat “Colorado Diamond Crystal,” which showcases the typical octahedral crystal shape of natural diamonds.
Editors' Picks
Sponsored by
More on Sourcing
The Latest
MajorsOct 13, 2026
David Webb Owner Purchases Lugano JewelryThe high-end jewelry retailer was sold to private investment firm Middle West Partners and a group of longtime clients.
Lab-GrownOct 13, 2026
Stephanie Gottlieb Takes Lab-Grown Diamond Collection WholesaleThe jewelry designer has partnered with Sofer Jewelry to distribute her 85-piece lab-grown diamond collection.
IndependentsOct 13, 2026
Retailer Hall of Fame 2026: Sean DunnDunn, this year’s Single-Store Independent inductee, is passionate about innovation and telling the story of natural diamonds.
Brought to you by
Meet Gemology’s Next Generation Microscope: GIA® Gemolite® NXT Professional EditionExperience gemstones with greater precision and comfort than ever before.
AuctionsOct 13, 2026
Christie's Geneva To Auction 'Bulgari Pink' DiamondThe 24-carat fancy intense pink diamond ring could fetch up to $18 million at the November sale.
Weekly QuizOct 08, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
IndependentsOct 13, 2026
Greenwich St. Jewelers’ New Candle Smells Like HomeThe “Island Jewel” candle honors New York City and Puerto Rico and raises money for the island’s water relief efforts.
TechnologyOct 13, 2026
GemFind Is a New JA Member Benefit Partner The partnership will give JA members access to preferred pricing, exclusive benefits, technology solutions, education, and resources.
Brought to you by
Your Piece Could Be the One Editors Talk AboutSubmit your pieces for a chance to win in this year's competition.
SurveysOct 09, 2026
These Will Be the 10 Busiest Days for In-Store Shopping This Holiday SeasonStores should expect to see the most customers on Nov. 27, and Christmas week is expected to be hectic too, as Dec. 25 falls on a Friday.
CollectionsOct 09, 2026
Elisa Solomon Collabs With Serendipity 3 on ‘Frozen Hot Chocolate’ CharmThe charm, our Piece of the Week, features brown diamond frozen hot chocolate topped with white diamond whipped cream and a ruby straw.
AuctionsOct 09, 2026
8-Carat Blue Diamond Goes Unsold at UK Jewelry Auction The top lot of Elmwood’s recent fine jewelry sale in London was a 1.84-carat, D color Tiffany & Co. solitaire diamond ring.
WatchesOct 09, 2026
Movado to Sell Majority Stake in Ebel for $66.5MThe watch company agreed to sell a 95 percent interest to a group comprised of F.P. Journe, Chanel, and Swiss watch exec Pierre Jacques.
Policies & IssuesOct 08, 2026
Third Wave of IEEPA Tariff Refunds Begins This round of tariff refunds is for importers that have sued over IEEPA tariffs in the Court of International Trade and won.
CollectionsOct 08, 2026
Brent Neale’s New Collection Goes ‘Back to Basics’It revisits the brand’s most requested silhouettes, from "Pillow"-set necklaces and bracelets to "Signature"-set rings and earrings.
Events & AwardsOct 08, 2026
Pattons Fine Jewelry Sweeps Local Design ContestAra Chanakian, a jeweler at Pattons, took home top honors in every category at Jewelers of Louisiana’s annual jewelry design competition.
AuctionsOct 08, 2026
Reba McEntire’s Jewelry, Watches Head to Julien’s AuctionsThe live charity benefit sale in Nashville will also feature gowns, boots, and other memorabilia from the country music legend.
Supplier BulletinOct 08, 2026
Overnight Mountings’ Bridal Builder Helps Jewelers Turn Custom Design into a Hands-On Selling ExperienceSponsored by Overnight Mountings
Policies & IssuesOct 07, 2026
The Plumb Club Amplifies Its Voice as Geopolitical Pressures MountThe supplier organization recently joined JA and JVC to have more input on political issues affecting the jewelry industry.
CollectionsOct 07, 2026
Blue Nile, Royal Asscher Collection Highlights Natural Diamond BeautyBlue Nile, a Signet Jewelers-owned brand, is now Royal Asscher’s exclusive licensed retailer in North America.
CollectionsOct 07, 2026
4 Standout Pieces in Audemars Piguet’s First High Jewelry Collection “Royal Oak” pays homage to the brand’s most popular watch model using 18-karat gold as well as diamonds, emeralds, and sapphires.
MajorsOct 07, 2026
Empire Safe & Vault Promotes Juan Morales to CEOAs part of the transition, Joseph Nicosia has stepped into the role of COO.
CrimeOct 06, 2026
6 Charged in Connection to String of New Jersey Smash-and-GrabsThe alleged thieves used crow bars and sledgehammers to smash into jewelry stores across the state.
ColumnistsOct 06, 2026
Sherry Smith: Is the Consumer Really Trading Up?Ahead of the holidays, Smith urges jewelers to take a hard look at who’s buying jewelry, what they’re purchasing, and who’s stopped buying.
SourcingOct 06, 2026
DDG Taps Influencers for ‘My Diamond Does Good’ CampaignIn the new consumer-facing campaign, four fashion and lifestyle creators share the stories behind their natural diamond pieces.
MajorsOct 06, 2026
Frederick Goldman Names COO, CMOFGI President John Orrico is also leaving the company after more than 13 years.
Events & AwardsOct 06, 2026
JIS Fall Returns to MiamiThe 2026 edition will feature presentations on alternative materials and design trends, as well as pop-up activations on the show floor.
SourcingOct 05, 2026
De Beers to Take Full Ownership of Gahcho KuéIt is the last fully operational diamond mine in Canada following the recent closures of Ekati and Diavik.
