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

Stock image of gavel
CrimeDec 24, 2025
LA Jewelry District Couple Pleads Guilty to Hiding Millions from IRS

The couple pleaded guilty to concealing at least $127 million in cash transactions at its precious metals businesses.

People shopping in winter clothes
SurveysDec 24, 2025
Consumer Confidence Falls Again in December

Consumers shared concerns about prices, inflation, tariffs, trade, and politics in the survey’s write-in response section.

Bonhams US headquarters
AuctionsDec 24, 2025
Bonhams to Open New U.S. Flagship in NYC

In February 2026, the auction house will move its headquarters to the former Steinway Hall, a neoclassical landmark on Billionaires’ Row.

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.

Hana Kaneko rings
Events & AwardsDec 24, 2025
NYC Jewelry, Antique, & Object Show Announces Winter Event

The new show will take place Jan. 23-25, 2026.

Weekly QuizDec 23, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Costume Designers Guild Award By Bulgari
Events & AwardsDec 23, 2025
Bulgari Reimagines Costume Designers Guild Award

The LVMH-owned brand has partnered with the costume design union to revamp its award for 2026.

Kering logo
MajorsDec 23, 2025
Kering to Acquire Stake in Raselli Franco Group

The luxury titan inked a deal to acquire an initial minority stake in the jewelry manufacturer with a pathway to full ownership by 2032.

roseco-catalog.png
Brought to you by
Roseco Releases New Full-Line Catalog

Roseco’s 704-page catalog showcases new lab-grown diamonds, findings, tools & more—available in print or interactive digital editions.

For Future Reference Vintage
MajorsDec 23, 2025
For Future Reference Vintage Enters Bloomingdale’s

The company’s curation of unsigned vintage and estate jewelry debuted at the Bloomingdale’s in Costa Mesa, California.

Counterfeit Cartier and Audemars Piguet watches
CrimeDec 22, 2025
Customs Seizes Hundreds of Fake Rolex, Cartier Watches

In the recent multi-shipment seizure, CBP also found counterfeit Audemars Piguet, Moncler, and Chrome Hearts items.

Helzberg new store concept rendering
EditorsDec 22, 2025
How Helzberg Is Reimagining Its Stores

Helzberg’s Chief Retail Officer Mitch Maggart shared details about its tests of a new store concept rooted in an elevated luxury experience.

Graphic for the 2025 Year-End Webinar
Recorded WebinarsDec 22, 2025
2025 Jewelry Rewind: Looking Back on an Eventful Year

Jewelers of America execs and National Jeweler editors discuss tariffs, the sky-high gold price, and the engagement that broke the internet.

Pair of Ippolita Lollatini earrings
MajorsDec 19, 2025
MadaLuxe Group Acquires Ippolita

The luxury goods company said founder Ippolita Rostagno will remain at the brand’s helm.

Bulgari CEO Laura Burdese
MajorsDec 19, 2025
LVMH Names New Bulgari CEO

Laura Burdese, who joined the Italian luxury brand in 2022, will take on the role in July.

Harwell Godfrey Lil Buddies
EditorsDec 19, 2025
2025 Jewelry Superlatives: A Yearbook-Style Year in Review

The National Jeweler editors revisit the most noteworthy industry happenings and design trends from 2025.

Front of Jean Schlumberger’s ‘African Cat’ brooch
AuctionsDec 19, 2025
Jean Schlumberger’s ‘African Cat’ Is Purr-Fection

Need a gift for the cat lover who has everything? Look no further than our latest Piece of the Week.

Audemars Piguet Grosse Pièce
AuctionsDec 18, 2025
Audemars Piguet Reclaims Historic Pocket Watch at Auction

It purchased the “Grosse Pièce,” an ultra-complicated Audemars Piguet pocket watch from the ‘20s, for a record-breaking price at Sotheby’s.

Diamond ring in parts
Lab-GrownDec 18, 2025
Kira Jewels Debuts Custom Lab-Grown Diamond Jewelry Service

The lab-grown diamond grower now offers custom engagement and fashion jewelry through its Kira Custom Lab Jewelry service.

Terry and Cindy Chandler at AGS Conclave
EditorsDec 18, 2025
Terry Chandler Looks Back on 40 Years of Opportunity, Change, and Friends

Chandler got his start at Michelson Jewelers and has served as DCA president and CEO since 2001. He will retire at the end of the month.

Rendering of Bob’s Watches JFK airport store
WatchesDec 18, 2025
Bob’s Watches to Open Store in New York’s JFK Airport

The boutique is slated to open this week inside Terminal 8, offering pre-owned Rolex watches and more to international travelers.

JamAlert 1872x1052.png
Supplier BulletinDec 18, 2025
Cell Jammers Are Targeting Your Business. Here's How to Beat Them

Sponsored by Digital Monitoring Products

Fabergé egg pendant near gloved hand
CrimeDec 17, 2025
Man Pleads Not Guilty to Swallowing Fabergé Pendant

The special-edition egg pendant ingested in a New Zealand jewelry store was recovered after a six-day wait.

Ashley Zhang Jewelry Snake Necklace, Renato Cipullo Hematite Blaze Necklace, Vanessa Fernandez Studio Curva Wrap Hoops, Hernsdorf Tears of Aphrodite Necklace, Robinson Pelham Tsar Star Earrings, Marla Aaron Nymphenburg Lock, Lof The Valentine Ring
EditorsDec 17, 2025
2025 Jewelry Rewind: The Best Piece of the Week Picks

Associate Editor Natalie Francisco plays favorites with Piece of the Week, selecting a standout piece of jewelry from each month of 2025.

Lucy Hale in Jacquie Aiche’s Love and Desire Campaign
CollectionsDec 17, 2025
Lucy Hale Stars in Jacquie Aiche’s Holiday Campaign

The “Love and Desire” campaign is inspired by the magic that follows when one’s heart leads the way, said the brand.

SSEF logo
GradingDec 17, 2025
SSEF Announces 2025 Scholarship Winners

Two awardees will receive free tuition for an educational course at the Swiss lab, with flights and lodging included.

Pandora Alexander Lacik and Berta de Pablos-Barbier
MajorsDec 16, 2025
Pandora’s New CEO Will Step Up Early

Berta de Pablos-Barbier will replace Alexander Lacik at the start of January, two months earlier than expected.

JAR pendant brooch, fancy intense blue diamond
AuctionsDec 16, 2025
Suzanne Belperron, JAR Shine in Sotheby’s First Auctions at New HQ

Sotheby’s held its first two jewelry sales at the Breuer building last week, and they totaled nearly $44 million.

×

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