703-Carat Tanzanite Sets Guinness World Record
Carved by Naomi Sarna, the “L’Heure Bleu” is now 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.
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

The bracelet references vintage high jewelry and snake symbolism as a playful piece where a python’s head becomes a working belt buckle.

The heist happened in Lebec, California, in 2022 when a Brinks truck was transporting goods from one show in California to another.

The 10-carat fancy purple-pink diamond with potential links to Marie Antoinette headlined the white-glove jewelry auction this week.

The Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.

The Starboard Cruises SVP discusses who is shopping for jewelry on ships, how much they’re spending, and why brands should get on board.


The historic signet ring exceeded its estimate at Noonans Mayfair’s jewelry auction this week.

To mark the milestone, the brand is introducing new non-bridal fine jewelry designs for the first time in two decades.

The countdown is on for the JCK Las Vegas Show and JA is pulling out all the stops.

Founder and longtime CEO Ben Smithee will stay with the agency, transitioning into the role of founding partner and strategic advisor.

Associate Editor Natalie Francisco shares 20 of her favorite pieces from the jewelry collections that debuted at Couture.

If you want to attract good salespeople and generate a stream of “sleeping money” for your jewelry store, then you are going to have to pay.

The top lot was a colorless Graff diamond, followed by a Burmese ruby necklace by Marcus & Co.

Gizzi, who has been in the industry since 2001, is now Jewelers of America’s senior vice president of corporate affairs.

Luca de Meo, a 30-year veteran of the auto industry, will succeed longtime CEO François-Henri Pinault.

Following visits to Vegas and New York, Botswana’s minerals minister sat down with Michelle Graff to discuss the state of the diamond market.

The “Your Love Has the Perfect Ring” campaign showcases the strength of love and need for inclusivity and representation, the jeweler said.

The former De Beers executive is the jewelry house’s new director of high jewelry for the Americas.

The New York Liberty forward is the first athlete to represent the Brooklyn-based jewelry brand.

Take a bite out of the 14-karat yellow gold “Fruits of Love Pear” earrings featuring peridots, diamond stems, and tsavorite leaves.

The one-day virtual event will feature speakers from De Beers, GIA, and Gemworld International.

The California-based creative talks jewelry photography in the modern era and tackles FAQs about working with a pro for the first time.

Al Capone’s pocket watch also found a buyer, though it went for less than half of what it did at auction four years ago.

The foundation has also expanded its “Stronger Together” initiative with Jewelers for Children.

Assimon is the auction house’s new chief commercial officer.

The De Beers Group CEO discusses the company’s new “beacon” program, the likelihood diamonds will be exempt from tariffs, and “Origin.”

The Danish jewelry giant hosted its grand opening last weekend, complete with a Pandora pink roulette wheel.

Industry veteran Anoop Mehta is the new chairman and independent director of the IGI board.