CollectionsJul 21, 2026
Graff’s New Butterfly High Jewelry Brooches MetamorphosizeThe 12-piece capsule collection transforms from brooches to pendants.
SourcingApr 15, 2022
Colored Stone Expert and Wholesaler David Patterson Dies at 89
He helped develop a process to synthesize alexandrite and founded manufacturer and wholesale company Geminex in the 1970s.
New York—Longtime gemstone expert David Patterson died April 8 at the age of 89, the International Colored Gemstone Association confirmed.
Patterson was born in Colorado in 1933 and attended Colorado State University, where he graduated with a degree in mechanical engineering.
But gemstones always called to him, ICA said. Patterson designed and built his own faceting machine and taught himself lapidary.
He also learned and developed the process to grow alexandrite.
In 1970, he contacted a group that had synthesized alexandrite and emerald and eventually started working with them, according to a column Patterson wrote that appeared as part of an article in the Gemmological Association of Great Britain’s Journal of Gemmology in 2012.
They had grown the crystals through one method but were starting to look at growing them via seeding.
When one of the team members was set to move to a new job, they asked Patterson if he wanted to buy the operation. He did, establishing Creative Crystals and stepping into the role of president.
Creative Crystals continued to develop the process, introducing its lab-grown alexandrite to the market officially at the 1972 AGS convention in New Orleans.
Though it drew “a significant amount of interest” there, according to the article, they still ran into plenty of resistance from jewelers.
“We came to believe the cost of marketing would exceed the size of the market. Therefore, we concluded it was a dead-end project for us.”
They sold the operation in 1979 to a limited partnership.
Patterson also started a gemstone manufacturing and wholesaling company called Geminex Corp. in 1975 in California.
Patterson was a longtime member of the ICA who established many relationships around the world throughout his career.
“He shared his knowledge and love of gemstones with all. He loved his alexandrite with a passion,” the organization said in an email remembrance.
Patterson was born in Colorado in 1933 and attended Colorado State University, where he graduated with a degree in mechanical engineering.
But gemstones always called to him, ICA said. Patterson designed and built his own faceting machine and taught himself lapidary.
He also learned and developed the process to grow alexandrite.
In 1970, he contacted a group that had synthesized alexandrite and emerald and eventually started working with them, according to a column Patterson wrote that appeared as part of an article in the Gemmological Association of Great Britain’s Journal of Gemmology in 2012.
They had grown the crystals through one method but were starting to look at growing them via seeding.
When one of the team members was set to move to a new job, they asked Patterson if he wanted to buy the operation. He did, establishing Creative Crystals and stepping into the role of president.
Creative Crystals continued to develop the process, introducing its lab-grown alexandrite to the market officially at the 1972 AGS convention in New Orleans.
Though it drew “a significant amount of interest” there, according to the article, they still ran into plenty of resistance from jewelers.
“We came to believe the cost of marketing would exceed the size of the market. Therefore, we concluded it was a dead-end project for us.”
They sold the operation in 1979 to a limited partnership.
Patterson also started a gemstone manufacturing and wholesaling company called Geminex Corp. in 1975 in California.
Patterson was a longtime member of the ICA who established many relationships around the world throughout his career.
“He shared his knowledge and love of gemstones with all. He loved his alexandrite with a passion,” the organization said in an email remembrance.
Editors' Picks
Sponsored by
More on Sourcing
The Latest
Policies & IssuesJul 20, 2026
Tariffs on Brazil to Increase But Rough Gemstones ExemptThe new tariff, imposed after a Trump administration study, is 25 percent and will stack on top of existing tariffs.
CollectionsJul 20, 2026
Vhernier Transforms ‘Freccia’ Collection Into High JewelryThe collection from 2014 has been reinterpreted into high jewelry with its signature triangular-shaped elements.
Brought to you by
Wedding Band Trends 2026: Personalization Takes Center StageColored gemstones, artisan finishes, mixed metals, and meaningful details are shaping demand in bridal jewelry.
MajorsJul 20, 2026
Krista Collins Walters Promoted to Publisher of InstoreShe will also take on the role of vice president of jewelry for SmartWork Media, a newly created position.
Weekly QuizJul 17, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
Events & AwardsJul 20, 2026
TJS Accepting Speaker Proposals for 2027 EventOrganizers are looking for presentations on topics like manufacturing, technology and research, bench work, gemstones, and sustainability.
CollectionsJul 17, 2026
HOWL Taps Shailene Woodley for ‘Home Sweet Home’ CampaignWoodley is seen in the campaign wearing our Piece of the Week, the “Frida” collar featuring 13 pieces of hand-carved Venetian glass.
Brought to you by
Building the Future of Jewelry Retail: DCA Expands Education, Leadership Development, and Workforce SolutionsDCA is preparing the next generation of professionals by supporting workforce development, leadership growth, and career advancement.
SourcingJul 17, 2026
Diamond Dealer Jeff Pancis Pens MemoirThe founder of natural colored diamond wholesaler Pancis Gems shares stories from his five decades in the industry.
Events & AwardsJul 17, 2026
Gem Awards Opens 2027 Nomination PeriodSubmissions for the milestone 25th annual Gem Awards will be accepted across three categories from now through July 31.
EditorsJul 16, 2026
Q&A: Guzema’s Co-Owners On Its US Expansion, 10-Year AnniversaryValeriya Guzema and Mariana Lenha look back on the last decade and discuss the Ukrainian brand’s first U.S. store.
SourcingJul 16, 2026
Ekati to Close, Leaving Canada With One Diamond Mine The diamond mine, which opened nearly 30 years ago in Canada’s Northwest Territories, is expected to shut down by mid-August.
FinancialsJul 16, 2026
Richemont’s Jewelry Sales Soar for the Seventh Quarter in a RowJewelry sales for the company, which owns Cartier, Van Cleef & Arpels, Vhernier, and Buccellati, rose 21 percent in the first quarter.
Events & AwardsJul 16, 2026
MJSA Mentor & Apprenticeship Program Certifies First Advanced Apprentice GraduateThe graduate, Grace Barden, credited the program with helping her secure a job as a bench jeweler.
Events & AwardsJul 16, 2026
Jewelers of Louisiana to Host 80th ConventionThe event, scheduled for next month in New Orleans, will include dinner, a custom jewelry design contest, and education sessions.
SourcingJul 15, 2026
1,305-Carat Diamond Recovered from Mine in BotswanaThe yet-to-be named stone is the 10th diamond weighing more than 1,000 carats to come out of Lucara’s Karowe mine.
IndependentsJul 15, 2026
New Jersey Jeweler Barry Berman Dies at 81The founder of Fords Jewelers, Berman is remembered for his love of connecting with his community.
FinancialsJul 15, 2026
Watches of Switzerland’s US Sales Jump 18%, Declines to Comment on Sale Report The watch and jewelry retailer had a strong fiscal year despite what its CEO described as a “complex operating backdrop.”
Events & AwardsJul 15, 2026
Hamptons Jewelry Show to Return in JulyThe open-to-the-public luxury jewelry and timepiece show, in its second year, is slated for July 23-26.
CollectionsJul 15, 2026
Pomellato’s New High Jewelry Is LiberatingBold color, expressive gem-setting, and sculptural form define the three chapters that make up “Stile Libero.”
IndependentsJul 14, 2026
Foundrae Opens First Standalone Store Outside USThe New York-based jewelry brand has expanded overseas, opening a store in London’s Mayfair district.
ColumnistsJul 14, 2026
Sherry Smith: What Today’s Jewelry Consumer Is Telling Us Rising revenue does not automatically mean a healthy business, particularly in the current economic landscape, Smith writes.
TrendsJul 14, 2026
Amanda’s Style File: Shoulder Dusters These long, fluid drop earrings are sure to catch the eye.
CrimeJul 14, 2026
Man Charged in $1M Jewelry Store Heist Lands on FBI Most Wanted ListAlberto Perez-Elias is one of four men charged with robbing a Cape Coral, Florida, jewelry store and is the only one still at large.
Events & AwardsJul 14, 2026
Conference on Mining, Sustainability Kicks Off in NYCInitiatives in Art and Culture is hosting its 16th annual Gold and Diamond Conference, with the theme of “Resilience.”
Lab-GrownJul 13, 2026
Stephanie Gottlieb Changes Her Mind on Lab-Grown DiamondsThe designer, who once said she’d never sell lab-grown diamonds, debuted two capsule collections designed to be fun and easy to wear.
SourcingJul 13, 2026
De Beers Announces Potential Layoffs, 2-Year Production Pause at VenetiaThe diamond miner and marketer is undergoing another round of cost-cutting measures ahead of its sale by Anglo American.
