Sourcing

703-Carat Tanzanite Sets Guinness World Record

SourcingApr 04, 2024

703-Carat Tanzanite Sets Guinness World Record

Carved by Naomi Sarna, the “L’Heure Bleu” is now the world’s largest cut tanzanite.

703 carat Tanzanite
In a ceremony last month, Naomi Sarna’s carved 703-carat “L’Heure Bleu” set a Guinness World Record as the world’s largest cut tanzanite. Its sterling silver base is inspired by the winds of Tanzania’s Great Rift Valley.
Hillsboro, Ore.—A 703-carat blue tanzanite carving by artist Naomi Sarna has set a Guinness World Record as the world’s largest cut tanzanite. 

The official weigh-in of the “L’Heure Bleu” took place on March 9 at the Rice Northwest Museum of Rocks & Minerals in Hillsboro, Oregon. 

Gemstone experts, Jessie English of J.S. English Appraisals and Madeline Saunders of Oregon Estate Jewelry, were the official witnesses for the weighing, and Guinness World Records adjudicator Michael Empric verified and announced the results.  

Rice Museum Board President Gail Spann and Museum Director Kim Vagner were in attendance. 

“As the director of the Rice Museum of Rocks & Minerals board, and longtime supporter of this wonderful ‘gem’ in Hillsboro, I couldn’t have been more delighted that we hosted Naomi Sarna on her adventure with Guinness World Records that was enjoyed by many attendees. We are lucky to have such talent grace our museum’s doorstep,” said Spann. 

 Related stories will be right here … 
 
Several years ago, Sarna traveled to the foothills of Mt. Kilimanjaro—the only place in the world tanzanite is found—to select the rough from which to create the largest-ever carved tanzanite.

She was asked to create a carving for an international competition that would benefit the Maasai people, the tribe whose ancestral lands contain the tanzanite mines where a tribesman first discovered the gemstone over 50 years ago.

While in Tanzania, Sarna was presented with several tanzanite crystals and chose the piece that eventually became the L’Heure Bleu. 

In 2013, it won first place in the carving category of the American Gem Trade Association’s annual Spectrum Awards. 

The gemstone sits on a sterling silver base inspired by the winds of Tanzania’s Great Rift Valley.

Sarna is also involved in humanitarian work in Tanzania, which includes teaching Maasai women to make wire-wrap jewelry using tanzanite.

While in Tanzania, Sarna witnessed the effects of poverty and eye disease on the community. She plans to donate the profits from the eventual sale of the L’Heure Bleu to the Portland-based Casey Eye Institute to provide eyecare to the Maasai. 

In 2017, National Jeweler reported the asking price as $500,000.

“The Guinness World Records brings international recognition and attention to my tanzanite carving L'Heure Bleu. This recognition gives great strength to my promise to help the Maasai with their vision difficulties. This is the cornerstone for our future hopes to provide eye care to the Maasai in Tanzania,” said Sarna.

Dr. Andreas Lauer, chair of the Casey Eye Institute, attended the weighing ceremony. Simultaneously, doctors from the institute were arriving in Tanzania for a cataract conference.

“The Casey Eye Institute is in Naomi’s debt. In the future, patients, their families, and the Maasai community will feel her passion and love as they express it through their smiles and joy from improved vision,” said Lauer.

For information on purchasing the L’Heure Bleu, contact Sarna directly at 917-325-2455, or visit her website

The Latest

My Next Question podcast with Sherry Smith and Edahn Golan
PodcastsJan 21, 2026
Episode 1: High Gold Prices, the Diamond Dilemma, & What’s Next

Was 2025 a good year for jewelers? Did lab-grown diamonds outsell natural? Find out on the first episode of the “My Next Question” podcast.

Jules Kim of Bijules, Sophie Howard of By Pariah, Jade Ruzzo, Joy Haugaard of Lionheart, Vanessa Fernández of Vanessa Fernández Studio, Hiba Husayni of Zahn-Z
EditorsJan 21, 2026
6 Jewelry Designers Poised to Have a Breakout Year in 2026

Whether you recognize their jewels or are just discovering them now, these designers’ talent and vision make them ones to watch this year.

Gavel and books stock image
CrimeJan 21, 2026
4 Men Charged in $1.7M California Smash-and-Grab Jewelry Store Robbery

Plus, JSA’s Scott Guginsky discusses the need for jewelers to take more precautions as the gold price continues to climb.

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.

Felice Korr Morris
IndependentsJan 21, 2026
Delaware Jeweler Felice Morris Dies at 91

Morris’ most cherished role was being a mother and grandmother, her family said.

Weekly QuizJan 15, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Bulgari Vimini Collection Campaign
CollectionsJan 21, 2026
Bulgari Weaves New Collection of ‘Vimini’ Creations

“Vimini” is the first chapter of the “Bulgari Eternal” collection that merges archival pieces with modern creations.

The Ritz-Carlton Half Moon Bay California
Events & AwardsJan 21, 2026
Jewelers Mutual’s ‘Conversations’ Retreat Returns to Discuss AI

The third edition will be held in Half Moon Bay, California, in April.

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.

Hiba Husayni, Jules Kim, Johnny Nelson, Dorian Webb, Lorraine West
Events & AwardsJan 20, 2026
These Are the 5 Finalists for the David Yurman Gem Awards Grant

The grant is in its first year and was created to recognize an exceptional fine jewelry designer whose star is on the rise.

Emmanuel Raheb, National Jeweler columnist and CEO of Smart Age Solutions
ColumnistsJan 20, 2026
First-Party Data Is the Most Valuable Asset Jewelers Have in 2026

Data built on trust, not tracking, will be key to success going forward, as the era of “borrowed attention” ends, Emmanuel Raheb writes.

Heath Yarges
MajorsJan 20, 2026
Borsheims Hires New Assistant Facilities Manager

Heath Yarges brings two decades of experience to the role.

Peter Yantzer at a diamond cutting machine
EditorsJan 16, 2026
Remembering Pete Yantzer for His Contributions and His Kindness

Pete’s boundless curiosity extended beyond diamond cut and he was always eager to share his knowledge with others, no matter the topic.

Buccellati Opera Tulle ring
FinancialsJan 16, 2026
Richemont’s Jewelry Brands Shine in Q3

Cartier, Van Cleef & Arpels, Buccellati, and Vhernier had another successful holiday season, Richemont reported this week.

Lagos SML High Jewelry Bee Brooch
TrendsJan 16, 2026
Diane Lane's Brooch Buzzes at the 2026 Golden Globes

Our Piece of the Week is Lagos’ “Bee” brooch that was seen on the red carpet for the first time on Sunday.

Gavel
CrimeJan 15, 2026
D.C. Rapper ‘Taliban Glizzy’ Sentenced to 18+ Years for Jewelry Store Robberies

Trevor Jonathan Wright led a crew in a string of armed robberies targeting South Asian-owned jewelry stores on the East Coast.

Jewelers of America 20 Under 40 Program
Events & AwardsJan 15, 2026
Jewelers of Americas’ ‘20 Under 40’ Nominations Now Open

The program recognizes rising professionals in the jewelry industry.

The Venetian Expo Las Vegas
Events & AwardsJan 15, 2026
Registration for JCK Las Vegas 2026 Is Now Open

A new lifestyle section and a watch showcase have been added to this year’s event.

Avocados From Mexico Golden Double Dip Chip
TrendsJan 15, 2026
Don’t Double-Dip With This Golden Chip

Avocados From Mexico is celebrating those who love to double-dip in game day guacamole with a 14-karat yellow gold tortilla chip necklace.

Marie Lichtenberg Lasso Locket Bracelets Campaign
CollectionsJan 14, 2026
Marie Lichtenberg Lassos Leather for New Bracelets

The brand is trading its colorful fabric cords for Italian leather in its “Lasso” baby locket bracelets.

“My Next Question: The Podcast” graphic featuring Amanda Gizzi and Michelle Graff
TechnologyJan 14, 2026
“My Next Question” Enters Its Podcast Era

National Jeweler and Jewelers of America’s popular webinar series is evolving in 2026.

Saks New York City holiday lights
MajorsJan 14, 2026
Saks Files for Bankruptcy, Names New CEO

The department store chain owes millions to creditors like David Yurman, Roberto Coin, Kering, and LVMH.

Colman Domingo
CollectionsJan 14, 2026
Boucheron Names Colman Domingo as Brand Ambassador

The award-winning actor’s visionary approach and creativity echo the spirit of Boucheron, the brand said.

Burnell’s Fine Jewelry Kristi Regan, Nathan Regan, Sean Hamlin, Erin Carson
IndependentsJan 14, 2026
Kansas Jeweler Wins 2025 ‘Wag’ Award

Edge Retail Academy honored Burnell’s Fine Jewelry in Wichita, Kansas, with its annual award for business excellence.

National Jeweler columnist Sherry Smith, vice president of coaching strategy and development at the Edge Retail Academy
ColumnistsJan 13, 2026
2025 Was a ‘Price Up, Units Down’ Year, Here’s What That Signals for 2026

In a market defined by more selective consumers, Sherry Smith shares why execution will be independent jewelers’ key to growth this year.

Orr’s Jewelers David Gordon, Marcia Gordon, Aliza Gordon, Leslie Gordon
IndependentsJan 13, 2026
Orr’s Jewelers Opens New Location in Pittsburgh’s Strip District

The family-owned jeweler’s new space is in a former wholesale produce market.

Stock image of a gavel and books
CrimeJan 13, 2026
Alleged Getaway Driver Charged in Florida Jewelry Store Robbery

Ivel Sanchez Rivera, 52, has been arrested and charged in connection with the armed robbery of Tio Jewelers in Cape Coral, Florida.

Rio Grande diamonds
SourcingJan 13, 2026
Rio Grande To Offer Calibrated Diamond Melee

The supplier’s online program allows customers to search and buy calibrated natural and lab-grown diamond melee, including in fancy shapes.

×

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