Sponsored by AGTA
Gübelin’s Blockchain for Gems Now Open to the Industry
The Swiss gem lab’s Provenance Proof technology debuted during AGTA GemFair.

The Swiss gem lab launched its Provenance Proof Blockchain during AGTA GemFair, officially opening its use to the trade.
Now, any professional stakeholder along the supply chain can register and, after a standard “Know your Customer” check, start using it.
It’s been a little more than a year since Gübelin announced it was developing the program to trace colored gemstones from mine to market, which it calls the first of its kind in the world.
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. It includes the lab’s “Emerald Paternity Test.”
Gübelin’s blockchain aims to track a stone as early in the supply chain as possible to build a record of each rough gemstone’s journey. The owner or custodian of the stone is then able to contribute certain information to the log book through to, and including, the end consumer.
Fura Gems was the mining pilot partner, offering goods at its Coscuez Colombian emerald mine as test subjects for the blockchain technology.
The Gübelin family shouldered the cost of developing the technology, which means it is free to use for anyone in the trade.
“The industry has been changing and consumers are now interested in transparency, and this was my main motivation … to support blockchain and this whole initiative because I think we need to change now,” Raphael Gübelin, president of the House of Gübelin, said in Tucson.
To help keep it inclusive, every process, including the registration and upload of the data, can be done on a smartphone.
Visibility is restricted to the user in custody of the gemstone, and only is allowed upstream—meaning the current users can see who had the gemstone before them but do not see where it goes once it leaves their possession—though Everledger CEO Leanne Kemp told National Jeweler during an interview after the launch event that it could be reversed to allow someone at the beginning of the chain to see subsequent actions should users give permission to do so.
Gübelin Gem Lab Managing Director Daniel Nyfeler also noted that the lab has no privileged insight into specific data of the blockchain; the lab itself can only see the information entered into the blockchain relating to the stones it is entrusted with testing.
WATCH: Gübelin Explains How the Blockchain Works
He said it also makes economic sense to embrace it; blockchain could offer greater visibility for companies along the supply chain and offer retailers the full information to build the story behind a stone.
Nyfeler, along with Kemp, Raphael Gübelin, Fura Gems Vice President Marketing and Sales Rupak Sen, and Pat Syvrud, minerals, materials and society program development manager at the University of Delaware, took part in a panel after presentations during the Tucson launch.
During the panel, Nyfeler addressed one of the biggest criticisms of blockchain—it does not have the ability to prevent a user from entering false data that then appears legitimate as it is locked into the blockchain.
“Blockchain is not the silver bullet that’s going to bring 100 percent trueness in the industry immediately, but … it’s going to be much easier to determine over time and see patterns, and you’re going to see where such wrong information might come from, which so far is not the case and that’s the point where we were starting from,” he said.
When an attendee also asked whether the small-scale miners would care about becoming a part of this, Nyfeler said it was up to the industry to encourage them to do so.
Looking to the future, he told National Jeweler that Provenance Proof, like De Beers’ Tracr, is a long-term venture that eventually will be spun off as its own company.
A supervisory board will be entrusted with making strategic decisions, such as data security and compliance issues, and will consist mostly of individuals independent of the gemstone industry “in order to minimize the risk of conflicting interests.”
And since certain segments of stakeholders will have specific needs related to the use of the blockchain, such as a large-scale miner or wholesaler wanting interfaces to allow for the automated upload or exchange of the company’s inventory system, Provenance Proof—not Gübelin Gem Lab—will oversee designing, building and implementing solutions to address these needs.
The Latest

Watch the webinar in which National Jeweler’s editors talk about jewelry market week trends and their predictions for the rest of 2022.

All proceeds up to $25,000 will benefit the It Gets Better Project, a nonprofit that supports LGBTQ+ youth.

Experience all the Italian Jewelry market has to offer in Las Vegas.

It’s a reminder that life is best lived with discretion.

The end-to-end software allows for real-time control over all sales, inventory, repairs, customer communications, and marketing.

Associate Editor Lenore Fedow shares her impressions of the Las Vegas Antique Jewelry & Watch Show and a few of her favorite finds.

Provide your customers with a seamless selling solution by partnering with Windsor Jewelers, Inc.

The Asian Institute of Gemological Sciences aims to set a color standard for the trade name.

Kate Della Monica, a senior specialist in the Jewelry and Watches department, will relocate to the Sunshine State.

LVMH’s investment arm has taken a stake in Lusix, a lab-grown diamond company based in Israel.

Sotheby’s New York put a colorless diamond and a fancy deep orange-brown diamond up for sale last week, with mixed results.

Profits will help them recoup financial losses.

Retail veteran Alexis Nasard will step in as CEO on July 4.

After suffering a professional setback, columnist Peter Smith reflects on our ability to bounce back even when the hits keep on coming.

Glatz owned and operated Glatz Jewelers in Aliquippa, Pennsylvania for more than 40 years.

The organization will present three awards at its annual dinner, dance, and gala in October.

Former McKinsey partner Emily Yueh marks new president Evan Yurman’s first hire.

The New York jeweler also made the pop star’s wedding bands.

It’s predicted to sell for up to $484,000 during the Bonhams Hong Kong Jewels and Jadeite auction on June 22.

The recipient will receive up to $17,500 toward a tech-focused certification or program of their choice.

It’s as versatile as it is glamorous.

The alleged scheme involving fake “Love” bracelets, necklaces and rings was designed to circumvent Amazon’s counterfeit detection tools.

Chief Financial Officer Brad Hampton will take over as the retailer’s new CEO.

Its new collection with subtle swirl designs draws inspiration from the family’s Armenian roots.

It’s located at the Westfield Century City outdoor shopping center.