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

National Jeweler - Supplier Bulletin - April 2026 - JMSS Graphic.jpg
Supplier BulletinApr 23, 2026
JM® Shipping Solution: Smarter Shipping for High-Value Goods

Sponsored by Jewelers Mutual

John Jacob Astor IV’s Titanic pocket watch and a gold pencil case
AuctionsApr 23, 2026
John Jacob Astor IV’s Titanic Pocket Watch Fetches $1M

The Patek Philippe for Tiffany & Co. timepiece Astor brought aboard the ill-fated ship sold for double its estimate at a Freeman’s auction.

Adam Neeley Dali Garden Collection Eyris Ring
CollectionsApr 23, 2026
Adam Neeley’s High Jewelry Collection Steps Into Salvador Dalí’s Garden

The “Dalí’s Garden” collection was inspired by a surreal dream Neeley had after cooking a recipe from Salvador Dalí’s 1973 cookbook.

Antique Jewelry & Watch Show
Brought to you by
Discover Timeless Treasures: A Showcase of Antique Jewelry & Timepieces in Las Vegas

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Woman wearing Charles & Colvard lab grown diamond jewelry
MajorsApr 23, 2026
Charles & Colvard May Sell Assets for $1.5M

The proposed agreement follows the moissanite maker’s Chapter 11 bankruptcy protection filing last month.

Weekly QuizApr 16, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Natalie Feanny
IndependentsApr 23, 2026
Windsor Jewelers Names New Buying Director

Natalie Feanny has been appointed to the role.

Stock image of a gavel and books
CrimeApr 22, 2026
New Mexico Couple Pleads Guilty to Selling Fake Native American Jewelry

The pair falsely claimed their jewelry was made by Navajo artists, but it was imported from Vietnam.

lvajws image 1.jpg
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the Globe

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

Roberta Flack: Style, Art, & Music Auction Bulgari Collar
AuctionsApr 22, 2026
Roberta Flack’s Jewelry Is Going Up for Auction

Julien’s Auctions is selling the musician’s fine and fashion jewelry alongside her clothing, gold records, and other memorabilia.

Rachel King and The Tudor Heart book cover
CollectionsApr 22, 2026
British Museum Curator Pens Book on ‘The Tudor Heart’

Rachel King’s book dives into the history of the pendant believed to have belonged to Henry VIII and his first wife, Katherine of Aragon.

Henry Kessler, Vance Kessler, Alex Kessler, and Daniel Kessler of Sy Kessler Sales Inc.
Events & AwardsApr 22, 2026
Here’s What Sy Kessler Has on Tap for Las Vegas

The company will have deals on precious metals testers as well as the latest in lab-grown diamond detection technology and security.

Chanel Coco Game Haute Horlogerie Chessboard
WatchesApr 21, 2026
Coco Chanel Enters the Game with New Watch Collection

Gabrielle “Coco” Chanel is a character in the “Coco Game” collection of watches and the queen in its first haute horlogerie chessboard.

Jewelers of America 20 Under 40 winners collage
IndependentsApr 21, 2026
Meet Jewelers of America’s 2026 ‘20 Under 40’ Class

The annual list honors rising professionals on the retail and supply sides of the jewelry industry.

Fake Fendi bangle
CrimeApr 21, 2026
Customs Nabs 1,500 Pieces of Counterfeit Jewelry Bound for NYC

Seized in Kentucky, the packages include fake Cartier, Tiffany & Co., Chanel, and Fendi jewelry.

Stock image of a judge’s gavel
CrimeApr 20, 2026
Queens Man Convicted in Bludgeoning Death of Pawn Shop Owner

Rodolfo Lopez-Portillo faces 25 years to life in prison after being found guilty in the March 2022 beating death of Arasb Shoughi.

Jewelry Creators: Dynamic Duos and Generational Gems Book Cover
TrendsApr 20, 2026
Beth Bernstein, Sonia Esther Soltani Pen New Jewelry Book

“Jewelry Creators: Dynamic Duos and Generational Gems” highlights the relationships among 22 influential designers, brands, and gem dealers.

Savannah Convention Center
Events & AwardsApr 20, 2026
Atlanta Jewelry Show’s Spring Event Is Hitting the Road

The AJS Spring 2027 show will be held in Savannah, Georgia, with future shows taking place in other Southeast cities.

Mike McMullen and Adrienne Gernand
MajorsApr 20, 2026
Kendra Scott Names New CFO, Chief Business Officer

The jewelry retailer plans to open 20 new stores this year and expand into new product categories.

Oscar Heyman Multi-Colored Tourmaline and Diamond Flower Necklace
TrendsApr 17, 2026
New (Groundbreaking) Floral Jewelry for Spring 2026

Flower motifs are the jewelry trend blooming amongst the new collections that debuted this spring.

QVC Group logo
MajorsApr 17, 2026
QVC Group Files for Chapter 11 Bankruptcy

The retailer reported an 8 percent decline in annual sales as it struggles under the weight of billions of dollars of debt.

Edina Kiss Devil Drop Earrings
CollectionsApr 17, 2026
Edina Kiss’ Earrings Are the Devil on Your Shoulder

The “Devil” drop earrings, our Piece of the Week, are part of designer Edina Kiss’ new namesake jewelry line that she will show at Couture.

Stock image of gold bars
CrimeApr 17, 2026
FBI Issues Warning to Refineries, Retailers Due to High Price of Gold

The alert states that burglary crews are targeting jewelry businesses and details how jewelers and refineries can protect themselves.

Cartier Roadster
WatchesApr 16, 2026
Cartier Brings Back the Roadster

The “watchmaker of shapes” debuted the reworked version of the vintage sports car-inspired timepiece at Watches & Wonders.

Edge Retail Academy Ellen Gardner, Jennifer Motes, Mona Lisa Shaffer, Cindi Haddad Drew
IndependentsApr 16, 2026
Edge Retail Academy Updates Leadership Team

As demand for jewelry retail coaching grows, the company has established a dedicated business coaching leadership team.

Stuller Mountings 2026-2027 Catalog
MajorsApr 16, 2026
Stuller’s Latest Mountings Catalog Is Out Now

The “Mountings 2026-2027” catalog showcases Stuller’s largest and most diverse assortment to date with more than 400 new mounting styles.

Screenshots of Episode 4 of the “My Next Question” podcast
PodcastsApr 15, 2026
Episode 4: The Natural Diamond Dilemma

Sally Morrison and Mark Klein discuss De Beers’ first beacon in 16 years and the mistake the industry made with lab-grown diamonds.

Randy McKenzie of Spark Creations
MajorsApr 15, 2026
Spark Creations’ Randy McKenzie Dies at 72

McKenzie spent 45 years with Spark Creations and is remembered for being kind, dedicated, and hardworking.

×

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