Sourcing

Gübelin Working to Create Blockchain for Colored Stones

SourcingJan 10, 2018

Gübelin Working to Create Blockchain for Colored Stones

The lab is partnering with Everledger to develop technology to trace stones from mine to market.

20180110_Gubelin.jpg
Gübelin Gem Lab is partnering with Everledger to create a blockchain technology that can track any and all gemstones from mine to market.

Lucerne, Switzerland--In an effort to create more transparency, Gübelin Gem Lab is partnering with a technology company to create a blockchain for colored stones.

The lab announced Tuesday it is working with emerging tech company Everledger to develop the program that will trace gemstones from mine to market, which it calls the first in the world of its kind.

The project comes as part of the lab’s Provenance Proof initiative, a long-term program designed to develop and provide technologies to the gemstone industry to make it more transparent.

“We have a deep belief that the level of transparency we have in the gemstone industry is not fit to fulfill the requirements that today’s critical consumers have,” Gübelin Gem Lab Managing Director Daniel Nyfeler told National Jeweler Tuesday.

“We as a gem lab believe that we have a certain credibility or at least some kind of tech savviness that puts us in quite a good position to develop technologies that can help achieve the goal of transparency.”

That already includes its “Emerald Paternity Test” and now, the creation of the blockchain. 

A blockchain is a digital, decentralized ledger of transactions, which constantly grows as completed “blocks” are recorded.

Blockchain technology is secured using cryptography, which means that no one can tamper with the data once it has been recorded, and because the data is stored across its network, it eliminates the risk that comes with holding data centrally.

Everledger--which has experience building blockchain technologies for high-value goods, including diamonds--will design and build the required technical backbone for Gübelin’s Provenance Proof Blockchain.

The technology will engage any and all parties involved in the lifecycle of a gemstone. It can be applied to every colored stone.

The blockchain Everledger is building, expected to launch within the next six months, is a “digital look book,” Nyfeler said, with each gemstone having its own log of information.

RELATED CONTENT: Analysis: The State of the Colored Stone Market
It will aim to track a stone as early in the supply chain as possible and will build a record of each individual rough gemstone. The owner or custodian of the stone is then entitled to contribute certain information to the “look book”--as well as see certain formation--through to, and including, the end consumer.

“Overall, you get a kind of complete history of that stone,” Nyfeler said.

They are designing it to be easy to use on the front end.

Nyfeler said
they are building their technology based on smartphones (as they’re early in the development process, they are still working to figure out, beyond that, what form the tech will take). A blockchain for a gemstone will be started by entering simple data, such as its weight or a picture of the stone.

When asked about possible barriers for use for artisanal miners, he said the cost to use the blockchain technology is very small: “It’s indeed something that should function with the guy who is sitting in the small-scale mining, as long as he has a smartphone and is willing to give transparency on what he’s doing.”

While it is designed to give supply chain transparency, it wouldn’t be able to stop someone from swapping a mined stone for a synthetic or treated stone somewhere along the way. 

“But the good thing is that once it gets detected, you can basically trace it back and most likely find the place where something went wrong,” Nyfeler said. “That’s due to the fact that the blocks are immutable.”

This is also why the lab believes that the blockchain paired with the emerald paternity test provides an “extremely powerful package.” 

“The combination of something physical with something digital, we believe, really takes a step forward in our overall attempt to bring more transparency to our industry.”

The paternity test, launched at Baselworld 2017, makes emeralds completely traceable by applying DNA-based nanoparticles directly onto the rough crystals at mining sites.

The lab wants to expand the technology, or something similar to it, to all gems.

Nyfeler said the current type of nanoparticles they use on the emeralds can also now be applied to pearls and Paraiba tourmaline.

The lab is developing other solutions, likely also based on nanoparticles, for rubies and sapphires, though they are only at the lab trial stage for those now.

“We want to develop the technologies that, again, is something physical, that we add to the stone or write in the stone, something that is invisible and that becomes part of the stone and can be retrieved or read at any late stage.”

Since the investment required by anyone interested in the paternity test is quite large, Nyfeler said the lab also is partnering with a consultancy company in the artisanal mining sector on a project to see how the technology can be applied in such an environment.
Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Boucheron Human Being Collection Tattoo Necklace
CollectionsJul 09, 2026
Boucheron’s New High Jewelry Collection Is an Ode to the Human Touch

“Human Being” highlights the similarities and differences between us through five sets of jewelry that celebrate fine craftsmanship.

Baume & Mercier watch
WatchesJul 09, 2026
Damiani Group Finalizes Acquisition of Baume & Mercier

Richemont will continue to provide operational services for the watch brand for a period while the group prepares to integrate it.

Joopiter Logo
AuctionsJul 09, 2026
Pharrell Williams’ Joopiter Hires Former Bonhams Exec to Head New Watch Division

Nate Borgelt will lead the digital auction house and content platform’s new division as head of watches.

Brought-To-By-Article-Top-Image.jpg
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center Stage

Colored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.

Enoch Michael
Events & AwardsJul 09, 2026
Halstead Names 2026 Grant Winner

Enoch Platero, founder and designer behind Enoch Michael, is the first Native American jeweler to win the award.

Weekly QuizJul 09, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Karen Fox and Jenna Siegel
Events & AwardsJul 09, 2026
AGS, GIA Name 2026 Beatrice Shipley Scholarship Winner

AGS also announced the recipient of its “Women in Leadership” scholarship.

Kendra Scott
MajorsJul 08, 2026
Kendra Scott Joins ‘Shark Tank’ As Permanent Investor

The founder of the billion-dollar jewelry and lifestyle brand will debut as a full-time “Shark” on the upcoming season of the show.

DCA-NJ-article-1872x1052-060826.jpg
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce Solutions

DCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.

Hands crossed with rings on
SurveysJul 08, 2026
Signet Jewelers Falls 5 Spots on NRF’s ‘Top 100’ Retailers List

Plus, why retailers should be ready to adjust as the U.S. population may decline this year for the first time since the Great Depression.

René Lalique “Woman Dragonfly With Open Wings” pendant
CrimeJul 08, 2026
Here’s What Thieves Stole From the Lalique Museum

René Lalique’s “Woman Dragonfly With Open Wings” pendant, the first piece the museum acquired, was one of the jewels taken.

Arien Gessner and Moss Makhoulian
MajorsJul 08, 2026
Richline Group Promotes 2 Execs

Arien Gessner and Moss Makhoulian have been elevated into newly created roles.

The Retail Smiths partner and National Jeweler columnist Peter Smith
ColumnistsJul 07, 2026
Peter Smith: Diamond Branding and the Origin Paradox

A podcast prompted Smith to share his views on where origin fits into the natural diamond story and the viability of branded diamonds.

Jewelers of America Impact Initiative Recipients 2026
Events & AwardsJul 07, 2026
JA Announces 2026 Impact Initiative Recipients

The association selected eight recipients for the funding program, which is in its second year.

Zahn Z In Rubies We Clicked
TrendsJul 07, 2026
Amanda’s Style File: Ruby, White and Blue

Whether celebrating America’s 250th birthday or the USA’s World Cup run, July birthstone jewelry can double as a patriotic accessory.

Police van outside of Musée Lalique
CrimeJul 07, 2026
Thieves Steal Millions in Jewels From France’s Musée Lalique

Around 20 pieces of jewelry were stolen from the museum dedicated to French jeweler and glassmaker René Lalique.

Robinson Pelham Summer of ’96 Campaign
CollectionsJul 07, 2026
Robinson Pelham Is Partying Like It’s 1996

The “Summer of ’96” campaign and collection celebrate the year the brand was founded for its 30th anniversary.

Bachendorf’s New Dallas Location Exterior Rendering
IndependentsJul 06, 2026
Bachendorf’s To Open Fifth Store In Dallas

The new location is set to open this winter, featuring the retailer’s first rotating jewelry designer residency.

Jung Kook for Graff
MajorsJul 06, 2026
Graff Names BTS Star Jung Kook as New Ambassador

The pop artist appears in the latest campaign for the “Laurence Graff Signature” collection.

Pandora pearl jewelry campaign imagery
CollectionsJul 06, 2026
Pandora’s New Baroque Pearl Collection Is a Whimsical ‘Wonder’

One-of-a-kind pearls take the shape of ice cream cones, frogs, submarines, and other imaginative charms.

Bracelets_1872_1052.jpg
Supplier BulletinJul 02, 2026
Elevating Retail Showcases with Today's Necklace & Bracelet Trends

Sponsored by Rio Grande Jewelry Supply

Oscar Heyman Flag Brooch
TrendsJul 02, 2026
Oscar Heyman’s Flag Brooch Celebrates America

The American jewelry house, founded by Latvian immigrants, has been creating American flag brooches since 1917.

D. Geller & Son store mural
IndependentsJul 02, 2026
D. Geller & Son Partners with KSU Art Students on Store Mural

The artwork celebrates the Atlanta jeweler’s legacy and symbolizes its commitment to supporting local artists and its community.

Hand taking jewelry out of jewelry box
Events & AwardsJul 02, 2026
Stratus Estate Buyers Offers Jewelers Turnkey Buying Events

Its team can evaluate jewelry and watches, as well as luxury handbags, artwork, and collectibles.

Hand holding a gas pump
SurveysJul 01, 2026
Consumer Confidence Ticks Up in June

Falling oil prices were a factor in the slight month-over-month improvement.

Rio Grande Millgrain Wedding band and Round Diamond Engagement Ring
CollectionsJul 01, 2026
Rio Grande Launches First Finished Bridal Collection

The new offering comprises more than 120 bridal and engagement ring styles with natural and lab-grown diamonds.

Rockefeller Center Rink Rolex Clock
WatchesJul 01, 2026
Rolex Unveils Clock at Rockefeller Center

The clock is part of the celebration for the soon-to-open Rolex headquarters on New York City’s Fifth Avenue.

Kristen Cannon
IndependentsJul 01, 2026
Kristen Cannon of Valobra Master Jewelers Dies at 49

The public relations professional is remembered for her benevolent generosity and unwavering commitment to those around her.

×

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