AuctionsJun 10, 2026
31.62-Carat ‘Azure Blue’ Diamond Sells For $8M+ at Christie’sIt was a banner day for blue gemstones, with another blue diamond topping $8 million and a 41-carat sapphire going for $2.3 million.
SourcingFeb 24, 2022
Dorothée Gizenga, First Executive Director of DDI, Dies at 60
She was known as a tireless activist for social justice and champion for artisanal diamond miners.
Kinshasa, Democratic Republic of Congo—Dorothée Gizenga, co-founder and former executive director of the Diamond Development Initiative, died Feb. 18 due to complications from diabetes.
She was 60.
Her father, Antoine Gizenga, was a prominent politician in the Democratic Republic of Congo independence movement, according to an obituary from non-governmental organization Resolve, which joined forces with DDI in 2020.
He served as deputy prime minister and was jailed following the assassination of Prime Minister Patrice Lumumba.
He and his family were exiled in 1965; they moved to France, Russia, and then Angola.
Dorothée grew up around many prominent African liberation leaders of the time, but it was her own personal independence and desire for education that led her to move to Canada to earn degrees in chemistry and economics, the obituary said.
She worked for the Ontario government before moving to Ottawa. There, as a young mother, she worked for the Department of Foreign Affairs.
She later worked for Partnership Africa Canada, now called Impact, becoming a leader in the campaign to put an end to conflict diamonds.
In 2008, she was named the Diamond Development Initiative’s first executive director, where she became a tireless advocate on behalf of the world’s artisanal diamond miners. She traveled extensively in this role, taking DDI’s message to governments, industry bodies, and civil society across Africa, Europe, and North America.
She stepped down in 2019 after more than a decade in the role to move into the position of regional director in the DRC to lead DDI’s expansion in Africa.
She was also a cofounder of the Canadian and African Business Women’s Alliance, helped set up the African Canadian Social Development Council, served as a board member of the Nelson Mandela Children’s Fund.
She was skilled in English, French, Russian, Portuguese, and Lingala, a Bantu language spoken throughout the northwestern part of the DRC.
Gizenga received the Diamond Empowerment Fund’s Diamonds Do Good Award for Sustainable Practices in 2016.
“Dorothée Gizenga was as fearless as she was tireless in her pursuit of development and social justice. She will be greatly missed,” Resolve said in its press release.
Industry veteran Peggy Jo Donahue also remembered Gizenga in a social media post after news of her death, saying: “No one was more practical or more determined to create truly sustainable change in the world of small mining than Dorothée Gizenga—and I will honor her memory, and the lessons she taught us all, till the end of my days. Rest in peace, dear Dorothée.”
More on Sourcing
The Latest
MajorsJun 10, 2026
Saks Global Receives Bankruptcy Court Approval for ReorganizationThe approval means the retailer is on track to exit bankruptcy proceedings this summer.
CrimeJun 10, 2026
2 Suspects Arrested in Texas Jewelry Store RobberyThe men are believed to be part of the group of several masked suspects that robbed Marc Robinson Jewelers in April.
Brought to you by
All Eyes on Gold Prices. Alternatives to Look For. And What to BEWARE of in VegasAs gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.
CollectionsJun 10, 2026
Sylvie Debuts ‘Elevated’ Bridal Collection Inspired By Designer’s RingThe bridal-focused brand is also launching its Custom Atelier this summer, a digital custom design tool for its authorized retailers.
Weekly QuizJun 05, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
EditorsJun 09, 2026
Q&A: Al Cook on the Lab-Grown ‘Bubble,’ Dwindling Diamond Supply The De Beers Group CEO also discussed tariffs, Desert Diamonds, and the pending sale of De Beers in an interview with Michelle Graff.
MajorsJun 09, 2026
Wilkerson's Russ Whitehouse RetiresThe industry veteran is bringing his 56-year run in the fine jewelry sector to an end.
Brought to you by
How Modern Training Is Becoming a Competitive Advantage for Jewelry RetailersWith the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.
Events & AwardsJun 09, 2026
Pride Month Panel to Highlight LGBTQ+ Jewelry VoicesThe panel discussion will feature LGBTQ+ leaders across the jewelry, luxury, and creative industries.
CollectionsJun 09, 2026
Marie Lichtenberg’s New Capsule Collection Is a Smash, LiterallyInspired by a locket that got run over, the “Smash” capsule collection reimagines the shape of Lichtenberg’s signature style.
MajorsJun 09, 2026
Frederick Goldman Names Director of Sales for SoutheastThe company has promoted Katherine Whitacre to the role.
MajorsJun 08, 2026
Stuller Expands Selection of Lab-Grown Diamonds, Demi-Fine JewelryThe jewelry manufacturer has added Taylor Swift-esque diamond shapes, and more silver, gold vermeil, and gold-plated jewelry.
TrendsJun 08, 2026
Amanda’s Style File: June’s Birthstone TrioThose born in June can celebrate with pearl, alexandrite, and moonstone jewelry.
TechnologyJun 08, 2026
Overnight Mountings Launches Ring Builder PlatformThe platform allows retailers to guide clients through a customizable engagement ring buying experience in a branded interface.
IndependentsJun 05, 2026
Pennsylvania Jewelry Store To Close After 79 YearsJim Springer, owner of Dunkelberger’s Fine Jewelry, is heading into retirement.
SurveysJun 05, 2026
Consumers to Cut Back on Spending Amid Rising Prices, Survey Shows When conducting its May consumer confidence survey, The Conference Board asked extra questions about consumers’ budgeting strategies.
CollectionsJun 05, 2026
Rebel Jewelry’s Charm Symbolizes Perseverance for Pride MonthThe “Tunnel” charm, our Piece of the Week, celebrates Pride Month with its design inspired by hope and the light at the end of the tunnel.
AuctionsJun 04, 2026
Treasures from Maurice Tempelsman’s ‘Marvelous’ Life Head to AuctionUp for auction at Sotheby’s, the collection of Tempelsman’s personal effects includes a Cartier Tank watch Jackie O. gifted him.
CollectionsJun 04, 2026
Buddha Mama to Spend the Summer in AspenThe Miami-based fine jewelry brand will host its first summer residency in the Colorado mountain town from June 5 to Aug. 23.
MajorsJun 04, 2026
AGS Honors Late Peter Yantzer, Holds Time Capsule CeremonyThe organization also announced its international board of directors for the 2026-2027 term.
MajorsJun 04, 2026
Neiman Marcus’ Downtown Dallas Store to Close in SeptemberSaks Global confirmed the closure this week, spelling the end for a store that’s been part of downtown Dallas for more than 100 years.
ColumnistsJun 03, 2026
Peter Smith: When Top Talent Leaves and What It Says About YouSmith discusses how managers should handle a top performer's exit, warning that a poor response could have a lasting impact.
GradingJun 03, 2026
GIA’s Tracr Investment Is First Step Toward Industry-Owned PlatformThe Gemological Institute of America is now a 30 percent stakeholder in Tracr, the De Beers-backed blockchain for diamonds.
WatchesJun 03, 2026
The 1916 Company Taking Pre-Owned Rolexes on the Road, AgainThe retailer is bringing Rolex Certified Pre-Owned watches to five U.S. cities in 2026 for collectors to see, try on, and purchase.
IndependentsJun 03, 2026
Jessica Alba Is the New Face of Gabriel & Co.The actress and entrepreneur stars in the jeweler’s new campaign that celebrates life’s quiet moments.
TrendsJun 03, 2026
State of Design: Only the Innovative Will SurviveThe price of gold has risen, affecting the number of pieces designers make, the materials they use, and how they position themselves.
FinancialsJun 02, 2026
Signet Jewelers’ Q1 Sales Up 2% As It Focuses on ‘Core Four’ The jewelry retailer is zeroing in on Zales, Jared, Kay Jewelers, and Blue Nile as it looks to create unique brand identities for each.
