Policies & IssuesApr 28, 2026
Tariff Refunds: How to File, What to Expect Importers can submit claims now to receive money back for the IEEPA tariffs they’ve paid, with refunds expected to take up to 90 days.
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
Editors' Picks
Sponsored by
website or call 800-452-7769.
More on Sourcing
The Latest
IndependentsApr 28, 2026
This North Carolina Jeweler Is Passing the TorchThe owners of Gregory Jewelers in Morganton, North Carolina, are heading into retirement.
AuctionsApr 27, 2026
12 Years Later, the ‘Ocean Dream’ Diamond Resurfaces at Christie’sThe largest known fancy vivid blue-green diamond could fetch more than $12 million at its second auction appearance.
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.
ColumnistsApr 27, 2026
Stop Treating Mother’s Day Like an AfterthoughtEmmanuel Raheb says jewelers need to start marketing early and make it easy for customers to pick a gift for mom.
Weekly QuizApr 23, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
IndependentsApr 27, 2026
Longnecker Jewelry Celebrates 30 YearsIn honor of the milestone, the Nebraska jeweler has debuted Leslie & Co., its new in-house jewelry brand.
MajorsApr 27, 2026
JBT Re-Elects Jeff Corey as Board ChairThe trade organization, which held its annual elections earlier this year, also added five new board members.
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the GlobeGain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.
SurveysApr 24, 2026
Mother’s Day 2026 Jewelry Spending to Top $7B, NRF SaysNRF’s annual survey found that 45 percent of consumers plan to purchase jewelry for a loved one this Mother’s Day.
TechnologyApr 24, 2026
TwentyFour’s Digital-Age Locket Is a Virtual VaultThe “Vault” charm, our Piece of the Week, expands on the memories that can be stored in a locket by connecting to your phone.
Events & AwardsApr 24, 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.
IndependentsApr 23, 2026
Meet the Real Moms of Day’s JewelersThe jeweler’s Mother’s Day campaign highlights the women who work there—mothers, grandmothers, women who want to be mothers, and dog moms.
Supplier BulletinApr 23, 2026
JM® Shipping Solution: Smarter Shipping for High-Value GoodsSponsored by Jewelers Mutual
Lab-GrownApr 23, 2026
Charles & Colvard May Sell Assets for $1.5MThe proposed agreement follows the moissanite maker’s Chapter 11 bankruptcy protection filing last month.
AuctionsApr 23, 2026
John Jacob Astor IV’s Titanic Pocket Watch Fetches $1MThe Patek Philippe for Tiffany & Co. timepiece Astor brought aboard the ill-fated ship sold for double its estimate at a Freeman’s auction.
CollectionsApr 23, 2026
Adam Neeley’s High Jewelry Collection Steps Into Salvador Dalí’s GardenThe “Dalí’s Garden” collection was inspired by a surreal dream Neeley had after cooking a recipe from Salvador Dalí’s 1973 cookbook.
IndependentsApr 23, 2026
Windsor Jewelers Names New Buying DirectorNatalie Feanny has been appointed to the role.
CrimeApr 22, 2026
New Mexico Couple Pleads Guilty to Selling Fake Native American JewelryThe pair falsely claimed their jewelry was made by Navajo artists, but it was imported from Vietnam.
AuctionsApr 22, 2026
Roberta Flack’s Jewelry Is Going Up for AuctionJulien’s Auctions is selling the musician’s fine and fashion jewelry alongside her clothing, gold records, and other memorabilia.
CollectionsApr 22, 2026
British Museum Curator Pens Book on ‘The Tudor Heart’Rachel King’s book dives into the history of the pendant believed to have belonged to Henry VIII and his first wife, Katherine of Aragon.
Events & AwardsApr 22, 2026
Here’s What Sy Kessler Has on Tap for Las Vegas The company will have deals on precious metals testers as well as the latest in lab-grown diamond detection technology and security.
WatchesApr 21, 2026
Coco Chanel Enters the Game with New Watch CollectionGabrielle “Coco” Chanel is a character in the “Coco Game” collection of watches and the queen in its first haute horlogerie chessboard.
IndependentsApr 21, 2026
Meet Jewelers of America’s 2026 ‘20 Under 40’ ClassThe annual list honors rising professionals on the retail and supply sides of the jewelry industry.
CrimeApr 21, 2026
Customs Nabs 1,500 Pieces of Counterfeit Jewelry Bound for NYCSeized in Kentucky, the packages include fake Cartier, Tiffany & Co., Chanel, and Fendi jewelry.
CrimeApr 20, 2026
Queens Man Convicted in Bludgeoning Death of Pawn Shop OwnerRodolfo Lopez-Portillo faces 25 years to life in prison after being found guilty in the March 2022 beating death of Arasb Shoughi.
TrendsApr 20, 2026
Beth Bernstein, Sonia Esther Soltani Pen New Jewelry Book“Jewelry Creators: Dynamic Duos and Generational Gems” highlights the relationships among 22 influential designers, brands, and gem dealers.
Events & AwardsApr 20, 2026
Atlanta Jewelry Show’s Spring Event Is Hitting the RoadThe AJS Spring 2027 show will be held in Savannah, Georgia, with future shows taking place in other Southeast cities.
