About Us

Three Generations. One Story. 

In 1938 Tobias Gluck escaped Nazi persecution in Austria and resettled in Havana, Cuba, establishing a small diamond trading business built on the principles of fairness, quality and service.

At the end of the Second World War, Tobias - now a successful trader - moved to New York’s famous Diamond District on 47th Street, where he was soon joined by his son Sidney and son-in-law, Michael Ellis. Sid’s keen eye for quality and value, along with Mike’s drive and vision, positioned their business for rapid growth.

The company that started as a small supplier to the. trade became an industry leader, supplying national and regional jewelers with large and rare diamonds, while maintaining its focus on quality product and fair pricing.

Today, in its 80th year of business and third generation of family ownership, T. Gluck & Company is an international market leader with a time-honored tradition of professionalism and commitment to client satisfaction.

Our extraordinary team of diamantaires - Mark Ellis, Gideon Kamil, Luarie Fermo and Kenny Linsky - lead a staff with decades of experience, which includes jewelry experts educated at the Gemological Institute of America (GIA).

What started with Tobias in Cuba and flourished in New York with Mike and Sidney, the success of our company to this day is driven by a simple and straightforward philosophy: Integrity and Reliability

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