TrendsAug 13, 2025
Cristiano Ronaldo Proposes With Gigantic Oval-Cut DiamondModel Georgina Rodríguez received a rock of an engagement ring, with her diamond estimated to be 35 carats, experts say.
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.
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 MarketIt 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.
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.
More on Sourcing
The Latest
TrendsAug 13, 2025
Colorado Jeweler, Whiskey Maker Collab on Ring GiveawayThree winners will receive a custom ring from Honest Hands Ring Co. inlaid with a piece of history from Denver-based distillery Stranahan’s.
SurveysAug 13, 2025
These Are The 25 Hottest Retailers, Says NRFJD Sports and Wawa were among the fastest-growing retail companies in the U.S. last year.
Brought to you by
Taking the Moment Head On: How Rio Grande Champions the Present & Future of Fine JewelryAs a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.
SourcingAug 12, 2025
Gemfields Sells Fabergé for $50MAcquired by a tech investor, the historic brand will continue to focus on jewelry, accessories, and timepieces.
Weekly QuizAug 08, 2025
This Week’s QuizTest your jewelry news knowledge by answering these questions.
Policies & IssuesAug 12, 2025
Higher Tariff on Chinese Imports Paused for 90 Days, Trump SaysPresident Donald Trump issued an executive order extending the pause on higher tariffs to November as negotiations with China continue.
CollectionsAug 12, 2025
Jacquie Aiche’s New Collection Harnesses the Energy of the ThunderbirdThe “Thunderbird Slab” collection features a thunderbird motif as a symbol of power, protection, and boundless possibility.
Brought to you by
Investing in the Next Generation of Bench JewelersThe Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.
ColumnistsAug 12, 2025
Creative Connecting: How to Take a Better HeadshotColumnists Jen Cullen Williams and Duvall O’Steen share tips on how to elevate your professional image.
CrimeAug 11, 2025
Man Convicted of First-Degree Murder in Death of Colorado JewelerPeter Damian Arguello, a jeweler in the Denver suburb of Wheat Ridge, was found dead inside his store in November 2023.
IndependentsAug 11, 2025
Lisa Bridge to Depart Ben Bridge JewelerThe retailer, owned by Berkshire Hathaway, is becoming part of the Berkshire Hathaway Jewelry Group with Helzberg.
Events & AwardsAug 11, 2025
Bethenny Frankel to Give Keynote at CBG’s Experience ShowThe Continental Buying Group’s 2025 Tampa Experience Show is slated for Sept. 8-10.
EditorsAug 11, 2025
The Colors Expected to Be On-Trend in a Couple YearsAssociate Editor Lauren McLemore recently attended a fabrics trade show where a trend forecaster shared her predictions for summer 2027.
FinancialsAug 08, 2025
Brilliant Earth’s Q2 Sales Up 3% as Engagement Ring Sales RiseThe company raised its full-year sales guidance while noting it has not yet assessed the potential impact of the latest tariff news.
Events & AwardsAug 08, 2025
GJEPC’s Jewellers for Hope Celebrates 10 Years of FundraisingThe organization has raised more than $1.3 million for charity since its inception.
TrendsAug 08, 2025
Piece of the Week: Rahaminov Diamonds’ Bezel BangleThe brand’s latest iteration of a bezel-set diamond bangle features clean lines and a timeless design for a new modern silhouette.
WatchesAug 07, 2025
Bulova’s New Collection Honors Tony BennettThe first watch in the series commemorates his participation in the Civil Rights movement, marching from Selma to Montgomery in 1965.
Lab-GrownAug 07, 2025
Chatham Releases Catalog for Loose Lab-Grown GemstonesThe catalog contains a complete listing of all the loose gemstones in stock, as well as information about the properties of each stone.
TechnologyAug 07, 2025
Rembrandt Charms Debuts New Website, Bird CharmsThe company added a retailer dashboard to its site and three new birds to its charm collection, the cardinal, blue jay, and hummingbird.
Policies & IssuesAug 06, 2025
Tariff on India to Rise to 50%, Trump Says An additional 25 percent tariff has been added to the previously announced 25 percent.
MajorsAug 06, 2025
Claire’s Files for Chapter 11 Bankruptcy AgainThe jewelry and accessories retailer plans to close 18 stores as part of the proceedings.
IndependentsAug 06, 2025
Smith & Son Jewelers to Close 107-Year-Old Location Its Springfield, Massachusetts, store is set to close as owner Andrew Smith heads into retirement.
CollectionsAug 06, 2025
Zahn-Z Swims With Whales in ‘Beluga’ CollectionDesigner Hiba Husayni looked to the whale’s melon shaped-head, blowhole, and fluke for her new chunky gold offerings.
TrendsAug 06, 2025
Paola De Luca to Release Trendbook 2027+She will present the 23rd edition of the trend forecasting book at Vicenzaoro on Sept. 7.
CrimeAug 05, 2025
Report: Suspect Arrested in 1992 Murder of Miami JewelerOmar Roy, 72, was arrested in connection with the murder of jeweler Dionisio Carlos Valladares.
CollectionsAug 05, 2025
Mignon Faget Commemorates 20th Anniversary of Hurricane KatrinaThe New Orleans-based brand’s “Beyond Katrina” jewels honor the communities affected by the storm.
ColumnistsAug 05, 2025
The PR Adviser: Affiliate Marketing Is the Cost of CoverageLilian Raji explains why joining an affiliate network is essential for brands seeking placements in U.S. consumer publications.
