Events & AwardsMar 03, 2026
Johnny Nelson Wins David Yurman Gem Awards GrantNelson will be honored as the inaugural grant winner at the Gem Awards gala on March 13.
SourcingAug 02, 2016
After More than 50 Years, Kassoy Showroom Set to Close
The increasing amount of business done online is part of the reason the company has decided to jettison its physical space in the Diamond District.
New York--Kassoy LLC, a company that’s been a supplier to the jewelry industry since 1936, announced Monday that it’s shuttering its New York City showroom.
Beginning Sept. 1, the company will be operating exclusively out of its Plainview, N.Y. headquarters.
The Kassoy showroom is located at 28 W. 47th St. in Manhattan’s Diamond District and has been a neighborhood mainstay for more than 50 years.
It is a place where U.S. jewelers and overseas buyers doing business on 47th Street come to see, touch and feel the various instruments, machines and other supplies made by Kassoy, which got its start in the industry making supplies for diamond dealers.
The showroom is located on the second floor of a mixed-use building owned by the Dyckman family, a family whose patriarch, Moses Dyckman, was one of the first jewelers to migrate north from the Canal-Bowery area back in the 1940s. (The family also still owns 73 W. 47th St., which is called Dyckman’s Jewelry Exchange.)
On the street level at 28 W. 47th St. is a jewelry store, Avianne & Co. Jewelers, and above the Kassoy showroom are six apartments that the Dyckman family rents out, Jacob Dyckman said.
Kassoy said it’s moving out because so much of the jewelry business has migrated online and because of the “swiftly changing landscape of the Diamond District.”
Extell Development, the company that built the new International Gem Tower, has bought up a lot of buildings in and around 47th Street, and at least 10 will be demolished in the near future. Speculation is that the company will construct a tower in the neighborhood that is a mix of hotel, residences and commercial space.
Jacob Dyckman said despite all the changes taking place in the Diamond District, the family has no intention of parting with the building his father bought nearly eight decades ago.
While there are a lot of buildings in the neighborhood that have been sold and are marked for demolition, “This is not one of them,” he said.
Dyckman said they have started the process of finding new tenants to fill the space being vacated by Kassoy.
Beginning Sept. 1, Kassoy’s brick-and-mortar showroom will live online only at Kassoy.com, and can be accessed 24/7. The company said product specialists and customer service representatives will be available Monday through Friday from 8:30 a.m. to 6 p.m. EST to answer questions and provide technical support.
For more information, visit Kassoy’s
website or call 800-452-7769.
More on Sourcing
The Latest
MajorsMar 03, 2026
Swiss Refiner Completes Acquisition of Gannon & ScottThe American precious metals refiner’s day-to-day operations remain the same post-acquisition.
TrendsMar 03, 2026
Amanda’s Style File: AquatopiaThese aquamarine jewels channel the calming energy of the March birthstone.
Brought to you by
Is This You? Every Jeweler Has This Problem; We Have the Solution.Every jeweler faces the same challenge: helping customers protect what they love. Here’s the solution designed for today’s jewelry business.
Events & AwardsMar 03, 2026
AGTA Adds Another New Category for SpectrumThe “Innovative Design” category and award will debut in the Spectrum division of this year’s AGTA Spectrum & Cutting Edge Awards.
Weekly QuizFeb 26, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
EditorsMar 02, 2026
Jewelry at the Actor Awards: Reimagining Hollywood GlamourDiamond jewelry was the star of the event formerly known as the SAG Awards.
SurveysMar 02, 2026
Consumer Confidence Edges Up in FebruaryConsumers were somewhat less worried about the future, though concerns about rising prices and politics remained.
Brought to you by
DCA Enters a New Chapter in Jewelry EducationWith refreshed branding, a new website, updated courses, and a pathway for growth, DCA is dedicated to supporting retail staff development.
Events & AwardsMar 02, 2026
JVC to Honor Rebecca Foerster at Annual LuncheonFoerster is this year’s Stanley Schechter Award recipient.
Events & AwardsMar 02, 2026
JFC Names 2026 ‘Facets’ Honorees Sponsorships and tickets to the annual fundraising event, set for May 31, are available now.
CrimeFeb 27, 2026
Man Charged in Murders of Father, Son Jewelers in ChicagoChicago police and members of the U.S. Marshals Service tracked down the 35-year-old suspect earlier this week in St. Louis.
MajorsFeb 27, 2026
Jewelers Mutual to Donate $10M to Savannah College of Art and DesignA 10-year alliance has also begun to address the shortage of bench jewelers through scholarships, enhanced programs, and updated equipment.
CollectionsFeb 27, 2026
Renato Cipullo Turns Gold into HardstonesThe “Splendente” collection has evolved to feature hardstone letter pendants, including our Piece of the Week, the onyx “R.”
AuctionsFeb 26, 2026
Noonans to Auction Lady Wardington’s JewelryThe jewelry collection belonged to “one of society's most glamorous and beautiful women of the mid-20th century,” said the auction house.
SourcingFeb 26, 2026
Anglo American CEO Gives Insight Into De Beers SaleThe update came as Anglo took its third write-down on the diamond miner and marketer, which lost more than $500 million in 2025.
ColumnistsFeb 26, 2026
Practical Ways Jewelers Can Leverage AI in 2026Emmanuel Raheb discusses the rise of “GEO” and the importance of having well-written, quality content on your website.
CrimeFeb 26, 2026
Three Sentenced in California Jewelry HeistEach received around four years for burglarizing a jewelry store and a coffee shop in Simi Valley, California, last May.
Events & AwardsFeb 26, 2026
GIA Names 2026 Jewelry Design Contest Winner, Retires Annual AwardCatherine Aulick, a GIA graduate, received the ninth and final Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design.
TrendsFeb 25, 2026
Engagement Ring Trends 2026: What’s In, and WhyWe asked a jewelry historian, designer, bridal director, and wedding expert what’s trending in engagement rings. Here’s what they said.
EditorsFeb 25, 2026
Q&A: Brilliant Earth’s CEO on the New Beverly Hills StoreBeth Gerstein discusses the vibe of the new store, what customers want when fine jewelry shopping today, and the details of “Date Night.”
PodcastsFeb 25, 2026
Episode 2: Jewelry Trends & Does the Red Carpet Matter?Are arm bands poised to make a comeback? Has red-carpet jewelry become boring? Find out on the second episode of the “My Next Question” podcast.
WatchesFeb 25, 2026
Private Equity Firms Write Down Value of Breitling, Report SaysThe Swiss watchmaker is battling declining sales amid a rapid retail expansion, according to a Financial Times report.
CollectionsFeb 25, 2026
Rahaminov Diamonds’ New Campaign Honors Its MatriarchThe campaign celebrates Giustina Pavanello Rahaminov, the co-founder’s wife and matriarch of the family-owned brand, for her 88th birthday.
IndependentsFeb 25, 2026
Borsheims Names 2025 ‘Ike-It’ Award WinnerRachel Bennett, a senior jeweler who has been with Borsheims since 2004, earned the award.
Policies & IssuesFeb 24, 2026
IEEPA Tariffs Terminated, New 10% Tariff Already ImposedAfter the Supreme Court struck down the IEEPA tariffs, President Trump imposed a 10 percent tax on almost all imports via a different law.
IndependentsFeb 24, 2026
Sherry Smith Now Principal Partner at The Retail SmithsThe industry veteran, who was with The Edge Retail Academy for 14 years, joins her husband at the company he founded in 2022.
IndependentsFeb 24, 2026
Yafa Signed Jewels to Open Store in MiamiThe vintage signed jewelry retailer chose Miami due to growing client demand in the city and the greater Latin American region.
