Leeser Diamonds

Leeser Diamonds company information, Employees & Contact Information

Updated June 2026

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Leeser Diamonds is a Retail Luxury Goods and Jewelry company. It has approximately 1 employees on record. Contact data was last refreshed in June 2026. Find Leeser Diamonds's verified employee emails, phone numbers, headquarters address, and key decision makers below.

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Leeser Diamonds is the offspring of renowned Dutch company Gassan Diamonds, where Guy Leeser learned the nuances of the industry from his grandfather, legendary diamantaire Samuel Gassan. Guy honed his craft for 31 years at Gassan before establishing his own company at the nexus of the diamond trade: Manhattan’s bustling Diamond District. Samuel’s legacy manifests in Leeser’s exceptional customer experiences—personalized partnerships crafted for every unique need and circumstance. While we remain a small, family operation, our worldwide relationships offer an expansive selection of diamonds and jewelry at globally competitive prices.

Company Details

Employees
1
Address
50 W 47th St,
Industry
Retail Luxury Goods And Jewelry
NAICS
Jewelry, Luggage, and Leather Goods Stores
Jewelry Stores
Luggage and Leather Goods Stores
HQ
New York, New York
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