Our story ──────────

Expertise passed down from generation to generation

The origins ──────────

A family history 

The history of JMB Diamant is rooted in a family tradition connected to the diamond industry for several generations.

Benjamin Morhaïm's grandfather was already working in this field, passing down expertise and values that continue to guide the company today.

2008

The birth of JMB ──────────

A house emerges in the heart of Paris

In 2008, Benjamin Morhaïm's father founded JMB Diamant in the heart of the Marais district in Paris. At that time, the business combined two complementary areas of expertise: diamonds and jewelry.

A passion passed down ──────────

Growing up in the world of diamonds

Benjamin Morhaïm naturally grew up in this environment. At a very young age, he began accompanying his father in his work, becoming familiar with the various facets of the trade. Over the years, he developed a discerning eye and true expertise in diamonds, fueled by a lifelong passion.

The evolution of expertise ──────────

Expanding expertise

PAVING

FANTASY SHAPES

CERTIFIED STONES

In its early days, JMB Diamant developed its expertise in melee diamonds.

Gradually, the company expanded its business to fancy-shaped diamonds, then to certified stones, further establishing its specialization.

2018

From Le Marais to the 9th ──────────

A new chapter

In 2018, JMB Diamant left the Marais to move to the 9th arrondissement of Paris, in the heart of a district historically linked to the jewelry and diamond industry.

This new location marks an important milestone: an activity now fully dedicated to DIAMONDS.

Today and tomorrow ──────────

Yesterday, Today, Tomorrow

A family story. Expertise built up over generations.

Our Vision


To make JMB Diamant a benchmark partner in the diamond world, recognized for its expertise, high standards, and the quality of its relationships, from Paris to Antwerp.

Our mission


Rigorously selecting quality diamonds and supporting our clients through our market knowledge and network, while prioritizing a personalized, responsive, and confidential approach.

Our goal


Building lasting relationships based on trust, transparency, and discretion, while offering a selection that meets the requirements of jewelry and luxury professionals.

“Over time, JMB Diamant has built its history around diamonds, high standards, and trust. A story driven by the pursuit of excellence and the desire to reveal the uniqueness of every stone.”

Based in Paris, JMB Diamant benefits from its close proximity to Antwerp, the world’s diamond capital. We travel there regularly to hand-select our stones at the heart of one of the world's leading diamond centers.