Expertly sourced diamonds and colored stones from New York

Serving top jewelers, manufacturers and industry professionals since 1946

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Precision. Integrity. Relationships.

Family-owned New York diamond dealers

Trusted sourcing and precision selection

Serving jewelers and industry professionals globally

New York Diamond Dealer serving the world

Long-standing industry relationships

Trusted diamond dealer built on high quality relationships

Supporting our customers in finding the best stones since 1946.

About Us

I. Morgenstein offers a comprehensive range of diamond and colored stones services, including precisely calibrated assortments of natural round diamonds, perfectly matched fancy pairs and side stones, single natural diamonds in all shapes and qualities, and a refined selection of precious and semi-precious gemstones.