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

Tom Moses
GradingMar 06, 2026
Tom Moses Leaving GIA After Nearly 50 Years

Moses, who started at GIA’s Santa Monica lab in 1976, will leave the Gemological Institute of America in May.

Charles & Colvard showroom in Morrisville, North Carolina
Lab-GrownMar 06, 2026
Charles & Colvard Files for Bankruptcy, Citing Price Pressures

Increased competition, falling lab-grown diamond and moissanite prices, and the rising cost of gold took a toll on the moissanite maker.

Zome Solara Earrings
CollectionsMar 06, 2026
Zome’s ‘Solara’ Earrings Embody Celestial Beauty

The earrings, our Piece of the Week, feature pink tourmalines as planets orbiting around an aquamarine center set in 18-karat rose gold.

TopImageCrop.jpg
Brought to you by
Is This You? Every Jeweler Has This Problem; We Have the Solution.

Every jeweler faces the same challenge: helping customers protect what they love. Here’s the solution designed for today’s jewelry business.

Pomellato’s International Women’s Day “The Price of Freedom” Campaign
MajorsMar 06, 2026
Pomellato’s 2026 IWD Campaign Spotlights Economic Abuse

“The Price of Freedom” campaign video for International Women’s Day confronts the quiet violence of financial control.

Weekly QuizMar 05, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Stock image of shipping containers
Policies & IssuesMar 05, 2026
Tariffs to Increase to 15% This Week, Treasury Secretary Says

Also, a federal judge has ordered that companies that paid tariffs implemented under the IEEPA are entitled to refunds.

Common Era Difficult Women Pandora Pendant, Anne Boleyn Signet Ring, Cleopatra Pendant
CollectionsMar 05, 2026
Common Era Honors ‘Difficult Women’ in Collection

The ever-growing collection, which just expanded with the addition of Olga of Kyiv, features cameos of 12 women from history.

dca-laptop.jpg
Brought to you by
DCA Enters a New Chapter in Jewelry Education

With refreshed branding, a new website, updated courses, and a pathway for growth, DCA is dedicated to supporting retail staff development.

Diamond engagement rings by designer Lorraine West
TrendsMar 05, 2026
Engagement Ring Trends 2026: What’s In, and Why

We asked a jewelry historian, designer, bridal director, and wedding expert what’s trending in engagement rings. Here’s what they said.

American Gem Society Conclave 2026 Orlando logo
Events & AwardsMar 05, 2026
AGS Announces Conclave 2026 Speaker Lineup

The annual event will be held in Orlando, Florida, from Sept. 14-17.

Caitríona Balfe on Only Natural Diamonds Spring 2026 Issue Cover
TrendsMar 05, 2026
Caitríona Balfe Fronts Only Natural Diamonds Cover

The “Outlander” star modeled for the digital cover of the magazine’s spring issue, which features a story on her relationship with jewelry.

CIBJO Milan
MajorsMar 05, 2026
Registration Opens for CIBJO Centenary Congress

This year’s annual congress, which will mark the confederation’s 100th anniversary, will take place this fall in Italy.

Michael M Beverly Hills Flagship Interior Rendering
MajorsMar 04, 2026
Michael M Opens First Store

Beverly Hills was chosen as the location for the brand’s first store, designed as a “private residence for modern monarchs.”

Dubai mall
Policies & IssuesMar 04, 2026
Luxury Brands Temporarily Shutter Middle East Stores

Kering, Apple, and other retailers have reportedly temporarily closed stores in the Middle East region in light of the recent conflicts.

Brilliant Earth Beverly Hills showroom
EditorsMar 04, 2026
Q&A: Brilliant Earth’s CEO on the New Beverly Hills Store

Beth Gerstein discusses the vibe of the new store, what customers want when fine jewelry shopping today, and the details of “Date Night.”

JIS Miami Spring 2026
Events & AwardsMar 04, 2026
JIS Miami Spring Show to Feature New Gifts Pavilion, Pop-Up Trends Talks

Nearly half of buyers are prioritizing silver and fashion collections this season, organizers said.

Spinelli Kilcollin Live Now. Polish Later. Campaign
TrendsMar 04, 2026
Spinelli Kilcollin Rides Free In Year of the Horse Campaign

The “Live Now. Polish Later.” campaign features equestrians wearing the brand’s jewels while galloping across the icy plains of Kazakhstan.

Jennifer Ashworth
MajorsMar 04, 2026
LeachGarner Names New Brand Director

The precious metals provider has promoted Jennifer Ashworth to the role.

Johnny Nelson Wins David Yurman Gem Award Grant Graphic
Events & AwardsMar 03, 2026
Johnny Nelson Wins David Yurman Gem Awards Grant

Nelson will be honored as the inaugural grant winner at the Gem Awards gala on March 13.

Gannon & Scott and Metalor Technologies employees
MajorsMar 03, 2026
Swiss Refiner Completes Acquisition of Gannon & Scott

The American precious metals refiner’s day-to-day operations remain the same post-acquisition.

Isabel Delgado aquamarine earrings
TrendsMar 03, 2026
Amanda’s Style File: Aquatopia

These aquamarine jewels channel the calming energy of the March birthstone.

AGTA Innovative Design Award
Events & AwardsMar 03, 2026
AGTA Adds Another New Category for Spectrum

The “Innovative Design” category and award will debut in the Spectrum division of this year’s AGTA Spectrum & Cutting Edge Awards.

Nena Mensah and Sofia Carson at 2026 Actor Awards
EditorsMar 02, 2026
Jewelry at the Actor Awards: Reimagining Hollywood Glamour

Diamond jewelry was the star of the event formerly known as the SAG Awards.

Person pushing a shopping cart
SurveysMar 02, 2026
Consumer Confidence Edges Up in February

Consumers were somewhat less worried about the future, though concerns about rising prices and politics remained.

Rebecca Foerster
Events & AwardsMar 02, 2026
JVC to Honor Rebecca Foerster at Annual Luncheon

Foerster is this year’s Stanley Schechter Award recipient.

JFC facets 2026
Events & AwardsMar 02, 2026
JFC Names 2026 ‘Facets’ Honorees

Sponsorships and tickets to the annual fundraising event, set for May 31, are available now.

Faustino Alamo Dominguez and his son, Luis Angel Alamo, of Joyeria Angelo’s in Chicago
CrimeFeb 27, 2026
Man Charged in Murders of Father, Son Jewelers in Chicago

Chicago police and members of the U.S. Marshals Service tracked down the 35-year-old suspect earlier this week in St. Louis.

×

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