ColumnistsMay 12, 2026
It’s Official: We’re Getting ‘Brain Rot’ From Watching Short-Form Videos Peter Smith gives tips on leading meetings, developing marketing, and making trade show appointments in the age of short attention spans.
IndependentsJan 05, 2018
Longtime Jeweler Marilyn Minster-Ostheimer Dies at 87
She ran one of America’s oldest jewelry stores for 70 years.
Marilyn Minster-Ostheimer is seen in an undated photo obtained from the Minster’s Jewelers Facebook page. Her son, Will Minster, wrote of his mother two days after her death: “Many cannot remember how difficult it was for a female business owner in the ‘60s. She broke the barriers and refused to be denied.”
Newark, Del.--Marilyn Minster-Ostheimer, who helmed one of America’s oldest jewelry stores for seven decades, died Dec. 28. She was 87.
Minster-Ostheimer got into the jewelry business in 1945 at the age of 15.
According to an article about her passing in the Newark (Delaware) Post, she was friends with William Minster, the teenage son of the second-generation owner of J.J. Minster Jewelers, which then was located in Elkton, Maryland.
She hung around the store so much that John Henry Minster suggested she start working there, and so she did.
Minster-Ostheimer eventually married William Minster and, in 1955, helped the family open a second store in Newark, Delaware.
She took over the business, today called Minster’s Jewelers, in the 1960s when her husband retired due to health problems. He later died and she remarried.
Over the years, Minster-Ostheimer became a respected member of the Newark business community, spearheading the revitalization of downtown and, particularly, the renovation of the Newark Shopping Plaza, where her store is the oldest tenant.
The Newark Post reported that she was considered by many to be the “dean of the Newark business community” and also was a strong supporter of the arts in that town.
Two days after her death, her son, Will Minster, posted this on Facebook: “Every Main Street has their champion, and Newark and, before that, Elkton has lost a great one. For 70 of Minster’s Jewelers 122 years, she ran the business with pride. Many cannot remember how difficult it was for a female business owner in the ‘60s. She broke the barriers and refused to be denied.”
Will Minster told National Jeweler via Facebook Messenger that the store, which is marking 123 years in business this year, will continue.
Minster-Ostheimer is survived by her second husband, Henry Ostheimer; son, Will; and two daughters, Melissa Minster and Alice Minster Cody.
Funeral services are private.
Editors' Picks
Sponsored by
More on Independents
The Latest
CollectionsMay 12, 2026
Jessica McCormack Debuts Antique Coin-Inspired Medallions for SummerThe 11-piece “Medallions” capsule collection features five motifs: a crying eye, a heart on fire, a spiral, a flower, and a swallow.
Events & AwardsMay 12, 2026
The Tiffany & Co. x CFDA Jewelry Designer Award Is BackThe partners have announced the second cycle of the program, which has expanded to include a $25,000 student scholarship.
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.
TrendsMay 11, 2026
Former Macy’s CEO Joins Signet Jewelers BoardJeffrey Gennette, who retired in 2024 after 41 years with Macy’s, is the newest member of the jewelry retailer’s board of directors.
Weekly QuizMay 07, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
TrendsMay 11, 2026
Amanda’s Style File: Lucky May May babies are lucky to have emeralds, a gemstone admired for centuries, as their birthstone, writes Amanda Gizzi.
TechnologyMay 11, 2026
Clientbook’s New Tool Helps Jewelers Plan In-Store EventsThe new module allows retailers to plan, promote, and measure the success of events from a single dashboard.
Brought to you by
Discover Timeless Treasures: A Showcase of Antique Jewelry & Timepieces in Las VegasGain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.
Lab-GrownMay 08, 2026
NDC Publicly Criticizes Pandora Over ‘Misleading’ Natural Diamond ClaimsNDC said in an open letter that Pandora’s statements about the carbon footprint of lab grown versus natural diamonds are inaccurate.
SourcingMay 08, 2026
Ronnie VanderLinden Takes Over as WDC President The diamantaire and industry leader succeeds Feriel Zerouki and said he will focus on being a “champion” for natural diamonds.
TrendsMay 08, 2026
Rihanna Chooses ‘Desert Diamonds’ for 2026 Met GalaShe wore our Piece of the Week, Glenn Spiro’s “Old Moghul Golconda” earrings, featuring fancy brown-yellow diamonds totaling 51.90 carats.
Events & AwardsMay 08, 2026
JA Announces 2026 CASE Award WinnersTwo pieces were named “Best in Show,” one from the retail category and one from the supplier category.
FinancialsMay 07, 2026
Brilliant Earth Appeals to Higher-Income Shoppers in Q1The jewelry retailer noted resilience among its higher-end customers while demand softened for its lower-priced offerings.
AuctionsMay 07, 2026
‘Spectacular’ Kashmir Sapphire Headlines Heritage Spring Jewelry SaleLed by the 6.59-carat sapphire, the sale garnered $9.7 million, a record total for a Heritage jewelry auction.
MajorsMay 07, 2026
Gannon & Scott Names New Regional Account ExecutiveIn his new role, sales specialist Billy Welshoff will focus on the eastern United States.
WatchesMay 07, 2026
Chrono24 Names New CEOJosé Gaztelu has been promoted to the role, which has been vacant since last year.
Events & AwardsMay 07, 2026
JA Accepting Applications for 2026 Scholarship ProgramIt has also opened the application period for the Seymour & Evelyn Holtzman Bench Scholarship through June 30.
SourcingMay 06, 2026
Canada’s Oldest Diamond Mine Faces Uncertain FutureThe owner of the Ekati mine, which opened in 1998, has filed for insolvency protection amid the significant decline in diamond prices.
FinancialsMay 06, 2026
Pandora to Add Carbon Footprint Info to Lab-Grown DiamondsThe company announced the change alongside its Q1 results, which showed that the jewelry brand’s year is off to a shaky start.
MajorsMay 06, 2026
Saks Global Begins Layoffs, Reorganization Plans Closer to ApprovalThe retailer will cut 16 percent of its corporate workforce as part of its plan to exit bankruptcy.
AuctionsMay 06, 2026
Steve McQueen’s Heuer Monaco Watch Heads to Sotheby'sOf the many examples used in the filming of “Le Mans,” this one is believed to have spent the most time on Steve McQueen’s wrist.
EditorsMay 05, 2026
This Ohio Designer’s Jewelry Made It to the Met GalaMegan Piccione dressed Lauren Wasser in layers of diamond jewelry, making her stand out in a crowd that included celebrities like Beyoncé.
SourcingMay 05, 2026
Doug Hucker Returns to His RootsFollowing decades of association leadership, the “semi-retired” colored gemstone expert is turning his focus to gemstone education.
Events & AwardsMay 05, 2026
AMNH to Showcase Famous Jewelry, Trophies in Sports HistoryThe museum’s new exhibition will feature one of Jesse Owen’s Olympic medals, Yogi Berra’s crown, Super Bowl rings, and more.
Events & AwardsMay 05, 2026
JIS Launches Brand Exposure ProgramThe new program provides access to media exposure and editorial opportunities for exhibitors and retailers.
CollectionsMay 04, 2026
Melanie Georgacopoulos Turns Pearls Into Light for ‘Eclipse’ CollectionThe “Eclipse” jewelry collection captures the fleeting moment where light and shadow align though onyx, diamonds, and freshwater pearls.
ColumnistsMay 04, 2026
The Key Mindset for Better Trade Show BuyingBuying discipline at trade shows starts with clarity about your inventory levels, Smith writes.
