Diamond Club International

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66 W 47th St
New York, NY 10036

Diamond Club International is a family-owned fine jewelry company located in New York City's Diamond District, proudly serving customers since 1988. Helmed by master jeweler John Magzalcioglu, the company is dedicated to premium craftsmanship, impeccable quality, and personalized service at competitive prices.

With a legacy spanning over a century, Diamond Club International combines the expertise of timeless artisans, skilled manufacturers, and precision stone setters to create exceptional jewelry. The company is committed to customer satisfaction, offering assistance with everything from engagement rings to custom requests and jewelry care.

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5.016 reviews
Photo of HH G.
HH G.
8/28/2025

My experience with John was absolutely incredible. I came in to design a custom Mother's ring for my wife for her 40th birthday. I felt truly comfortable and never rushed with John and DCI. The...

Aly A.
11/10/2025

Public Warning for Tourists Buying Jewelry in the Caribbean My wife and I bought a $25,000 Rolex from Diamonds International in Saint Martin during a Royal Caribbean "Icon of the Seas" cruise. We...

Photo of Jen C.
Jen C.
5/22/2023

My husband and I met with John together to create my engagement ring and I get compliments on it from friends and strangers multiple times a week! John executed on our vision perfectly, working...

Rafa R.
12/1/2023

Excelente muy buen servicio buenas atenciones excelente personal muy amable las atenciones

Natalia D.
12/3/2019

John and his family are fantastic, very professional and from now on my go to jewelers. (Only people I could trust in this industry) John is an absolute perfectionist. He custom made a challenging...

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