Editors

Sustainability Stories: Mine to Market with Moyo Gemstones

EditorsApr 29, 2019

Sustainability Stories: Mine to Market with Moyo Gemstones

The first in a new series from Senior Editor Brecken Branstrator highlights a program bringing tracked gems from women miners in Tanzania to market and improving mining along the way.

20190429_Moyo-5.jpg
A new pilot program launched by Pact, a non-governmental organization, and gemstone trading partners brings tracked and traced gems from women miners in Tanzania to market.
The challenges associated with creating a supply chain that’s transparent, traceable and ethical are myriad.

Responsible sourcing, its obstacles and how to tackle them are among the industry’s hottest topics today, especially in the colored gemstone sector.

While discussion on these topics is necessary, it can be easy to get caught up in conversations about what still needs to happen without stopping to appreciate the concrete work being done by individuals and industry bodies today.

To that end, I’ve decided to launch a blog series highlighting real projects and initiatives undertaken by companies big and small, not only to celebrate them but to show what’s possible.

I’m kicking it off with a look at a recently launched program called Moyo Gemstones—so named because it means positive things in several different African languages—designed to help gemstones extracted by female miners in Tanga, Tanzania, move from mine to market while improving the lives of the women along the way.

The pilot project is a collaboration between the non-governmental organization Pact, Monica Stephenson’s Anza Gems and Nineteen48, with input from the Tanzania Women Miners Association (TAWOMA) and a blockchain addition from Everledger.

Building a Foundation
Moyo Gemstones builds on work already done in the area. The Gemological Institute of America approached Pact in 2016 to partner on an education program for miners, and the pilot took place in the Tanga province. 

Cristina Villegas, director of Mines to Markets at Pact, told me in a recent interview that while the program was successful in helping these women drastically increase sales, Pact realized they were still selling on a subsistence basis and that more needed to be done to help them find equal footing in today’s gem market. 

Collaborating with the miners and other players, Pact designed the mine-to-market program now called Moyo Gemstones, empowering the women to work safer, mine better, improve financial security and create equitable markets for their gems.

A couple of the miners in Tanzania with Anza Gems’ Monica Stephenson
A couple of the miners in Tanzania with Anza Gems’ Monica Stephenson

Not only do they want to effect change in the gemstone supply chain and the way gems benefit the communities from which they come, but also offer storytelling around them. 

“Consumers, regardless of commodity, are looking for different ways to interact and to make an impact through their purchasing power,” said Rebecca Villalobos, a member of Pact’s Innovation team. 

Based on direct feedback from the miners, Moyo Gemstones decided to hold “market days” in which all the women travel to a central location to sell their goods, providing a regular, controlled system for Moyo miners to do business with vetted local brokers and traders.

Each woman who wants to participate must be verified as a legal miner, among other considerations.

Moyo Gemstones will use the pilot phase to figure out how often the market days should happen. The first one is scheduled for May.

(A side note: The Tanzanian government has yet to officially lift the ban on rough gemstone exports instituted last year but has started to implement a few changes. Regardless, Villegas said the government has been supportive of the program and, because of Pact’s long history in the country, allows Pact to export despite the ban.)

Building the Communities
The Moyo Gemstones initiative is intriguing not only because it’s helping bring gems from vetted local miners to market, but also because it’s working to improve mining directly.

They are partnering with Tanzanian engineering services firm MTL Consulting to improve health and safety, working conditions, and basic geological and engineering support for enrolled miners. The firm has experience working with the Fairtrade Foundation’s ASM gold miners in East Africa.

Pact is also working with the Alliance for Responsible Mining to adapt the Code of Risk-Mitigation for ASM engaging in Formal Trade (CRAFT)—a global “entry” standard for due diligence in artisanal and small-scale mining—to colored gemstones.

“If we want to include as many (miners) as we can and change their lives, we have to meet them where they are but also set expectations and incentives,” Villegas said.

They will work with MTL Consulting to get the Moyo miners to CRAFT level over time.

In the meantime, as CRAFT for Gemstones develops, they will track progress against local laws, to which CRAFT is closely aligned, and aim to reinvest back into the community through staffed health clinics and teacher housing, which the women miners indicated are top priorities.

Adding Traceability
There’s another interesting aspect to the project.

Pact has been working with Everledger, the same tech company that developed Gubelin’s Provenance Proof blockchain, to develop a blockchain suitable for these artisanal miners.

Stones will first be recorded on the blockchain at market days. (There’s information on the reasoning behind that on the Moyo Gemstones website.)

When asked if this project presented any unique challenges, given the ASM aspect, compared with others they had worked on in colored stones, Carrie George, Everledger’s vice president, head of sustainability solutions, said when the company developed Provenance Proof with Gübelin, they already had taken ASM miners into account.

“One key factor that we needed to ensure was the ease of use and simplification of the process.”

Pact, Anza Gems and Nineteen48 worked directly with the women miners to put together a program that is feasible.
Pact, Anza Gems and Nineteen48 worked directly with the women miners to put together a program that is feasible.

She said teaming with the right partner, Pact, has been crucial in this project since they have so much experience on the ground with ASM miners. She added that education and training are important, which Pact has enabled through on-the-ground support and training.

“Everledger has evaluated the most effective and low-cost solutions for miners to provide chain-of-custody information. This combination is essential for downstream retailers to be able to confidently source ASM gems and, therefore, support their livelihoods.”

Pact and Everledger also had to keep the miners’ security in mind, meaning they had to balance providing enough information to allow for transparency and rich storytelling with privacy considerations.

“Part of the challenge here is recognizing that women miners are some of the most vulnerable people in the world,” Villegas said. “There’s usually some kind of shock event that happens to push them into mining. Not always, but often.”

Information visible on the blockchain will show the physical movement of the gemstones as well as who has handled them. There will also be basic information on the traders, exporters, brokers, mining regions and TAWOMA.

Individual miners’ stories and the program’s tracked metrics will not be on the blockchain, however, for both privacy and safety reasons.

Rather, Pact will aggregate the data and share information on MoyoGems.com to allow consumers, designers and retailers to learn more about how the miners are doing and how the program is developing.

Pact will test a few stones on the blockchain at the first market day in May and then improve as they confirm the format and get used to the technology, Villegas said, slowly incorporating blockchain as a complement to the chain of custody being constructed.

Headed to Market
To provide a point of sale for the loose stones the women mine—ruby, sapphire, tourmaline and garnet—Pact partnered with gem trading companies Anza Gems and Nineteen48. The two will work with existing traders in the country to buy gems from the participating miners and make them available to the global market.

“From the moment I heard about the GIA/Pact initiative, I could see the potential for a sustainable economic model,” Stephenson, of Anza Gems, said. “This could be a way out of poverty for these women and their children, through a natural resource they can harness. We can help bridge the gap of knowledge to help them mine better, safer and more productively, and give them a fair market value for their gems. And we can help them tell their stories and bring their beautiful gems to light.”

The first market day to connect the women miners of Tanga, Tanzania, with local traders is scheduled to take place in May.
The first market day to connect the women miners of Tanga, Tanzania, with local traders is scheduled to take place in May.

She added that as they worked on the program, local brokers and traders, as well as others in the Tanga community, rallied around it.

“When you elevate women, you are helping the entire community and region.”

Stephenson said faceted gems should be available by early to mid-summer for designers or retailers interested in buying and setting them in jewelry.

Ultimately, Pact is hoping that in building a program in direct collaboration with the miners and using participants and industry members already in place, rather than reinventing the wheel, Moyo will become a scalable project that could be replicated at other artisanal mining sites.

For now, I’m excited to see how this pilot program progresses.

To read more about it or learn how to purchase the miners’ gems, visit MoyoGems.com.
Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Gold bracelets and bangles
SurveysJul 16, 2025
Signet Jewelers Falls Lower on NRF’s ‘Top 100’ Retailers List

The middle class is changing its approach to buying jewelry and affordable luxury goods, the NRF said.

Buccellati Opera high jewelry bracelet
FinancialsJul 16, 2025
Richemont’s Jewelry Sales Up 7% in Q1

It marks the third consecutive quarter of growth for Cartier, Van Cleef & Arpels, Buccellati, and Vhernier.

Rolex Datejust ref. 16233
WatchesJul 16, 2025
The Top-Selling Rolex Models of the Last 15 Years, According to Bob’s Watches

The reseller’s market trends report, based on its sales data, also shows exactly how much Rolex prices have jumped since 2010.

an instructor and a student in a bench jewelry classroom
Brought to you by
Investing in the Next Generation of Bench Jewelers

The Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.

Jean Dinh Van Orgue Ring
AuctionsJul 16, 2025
Christie’s To Honor Dinh Van With Exhibition

The auction house will be hosting a retrospective paying tribute to jeweler Jean Dinh Van and his company’s 60th anniversary.

Weekly QuizJul 10, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Jake Duneier and Danielle Duneier
IndependentsJul 16, 2025
Clyde Duneier Ushers In Fourth Generation

Jake Duneier and Danielle Duneier-Goldberg have stepped into the roles of CEO and president, respectively.

Boucheron Impermanence Boucheron Dragonfly Earrings and Wisteria Hair Piece
CollectionsJul 15, 2025
Boucheron’s New High Jewelry Calls Attention to Nature’s Impermanence

The “Impermanence” collection contemplates nature through the Japanese art of Ikebana (flower arranging) and philosophy of wabi-sabi.

Jewelers of America logo with meetup, State of the Majors, giveaway and massages
Brought to you by
Jewelers of America is Headed to Las Vegas for JCK 2025

The countdown is on for the JCK Las Vegas Show and JA is pulling out all the stops.

James Avery Cedar Park
MajorsJul 15, 2025
James Avery Expands to 2 More States

The Texas-based jewelry retailer has set up shop in Tennessee and Arizona.

Eric Ford, Couture’s new brand director and former fine jewelry buyer at Neiman Marcus
Events & AwardsJul 15, 2025
Neiman Marcus Vet Joins Couture as Brand Director

Eric Ford will step into the role, bringing with him decades of experience.

Bench jeweler holding a ring and a tool
IndependentsJul 15, 2025
Ben Bridge Jeweler Acquires Olympic Manufacturing

In addition to improved capabilities, the acquisition will allow the jeweler to offer support to other independent jewelers.

Guzema Celestial Blue
CollectionsJul 15, 2025
Guzema Debuts First Colored Gemstone Jewelry

The “Celestial Blue” capsule collection campaign features Olympian Kateryna Sadurska.

Nanis Mykonos Store Exterior and Interior
MajorsJul 14, 2025
Nanis Opens First Store

The seasonal store, located in Mykonos, Greece, offers exclusive events, personal styling, and curated experiences.

Long’s Jewelers Summer of Love promo
IndependentsJul 14, 2025
It’s the Summer of Love at Long’s Jewelers

The New England jeweler is hosting a bridal event for the month of August.

Ethical Gem Fair
SourcingJul 14, 2025
Ethical Gem Fair Heads to Seattle

The trade-only event will host its debut fair in the Emerald City later this month.

The Edge and The Edge Retail Academy Logos
Events & AwardsJul 11, 2025
The Edge’s Annual Conference Returns in September

Its sessions will focus on inventory strategies, staff performance, retention and acquisition, emerging market trends, and more.

Miseno Arco Earrings
CollectionsJul 11, 2025
Piece of the Week: Miseno’s ‘Arco’ Earrings

For its 10th anniversary, Miseno designed the “Arco” earrings based on the Arco Felice, an arch conceptualized in A.D. 95 in Miseno, Italy.

James Avery Texas charm
Policies & IssuesJul 11, 2025
James Avery to Donate $1M to Texas Hill Country Relief Efforts

The jewelry company is one of several contributing to relief efforts in the region after the recent floods.

Kelly Osbourne Engagement Ring
TrendsJul 11, 2025
Kelly Osbourne’s Engagement Ring Is Sweet as Honey

Inspired by fiancé Sid Wilson’s nickname for her, the white and yellow diamond ring features a unique honeycomb design.

Penny Preville Anniversary Bangles and Penny Preville
CollectionsJul 10, 2025
Penny Preville Celebrates 5 Decades of Jewelry Design

The brand is marking its 50th anniversary with a limited-edition bangle, high jewelry suites, new collections, and more.

Exterior shot of Alvin Goldfarb Jeweler in Bellevue, Washington
IndependentsJul 10, 2025
Steven Goldfarb to Retire, Close Alvin Goldfarb Jeweler

Goldfarb said changes in the industry, coupled with his age and the updates needed to modernize his business, drove his decision.

LVMH chairman and CEO of the Americas Michael Burke
MajorsJul 10, 2025
LVMH Names New Chairman, CEO of the Americas

Longtime LVMH executive Michael Burke has stepped into the role.

A calligraphy sculptural ring made in 18-karat Fairtrade gold (Photo by: Jamie Trounce)
Events & AwardsJul 10, 2025
IAC Gold and Diamond Conference Returns to NYC

Central topics of next week’s event include climate action, labor rights, artisan preservation, and value retention in producing countries.

Vickie Rokkos
MajorsJul 10, 2025
Hearts On Fire Appoints New Sales Director

Vickie Rokkos has joined the jewelry company as its new national sales director of North America.

Mikimoto The Bows high jewelry necklace
SurveysJul 09, 2025
Jewelry Stays Strong as Luxury Market Slows, Bain & Co. Says

Turbulence will be the new baseline for luxury as it faces its biggest potential setbacks in 15 years, a recent report said.

1 NJ-Supplier-Bulletin-Snake-One.jpg
Supplier BulletinJul 09, 2025
JCK Unwrapped: Trends, Insights & Post-Show Tips

Sponsored by Rio Grande Jewelry Supply

Cece Jewellery For the Love of Fruits Pendants
CollectionsJul 09, 2025
Cece Jewellery’s New Fruit Jewels Celebrate Life’s Sweetness

The “For the Love of Fruits” collection features five fruit pendants, each holding a different meaning.

×

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