Certifications

CERTIFICATIONS & GUARANTEES

Trust as a signature

Each stone is selected with rigor and care. Because a diamond represents much more than a precious stone, we place particular importance on its authenticity, quality, traceability, and the transparency of its journey.

Our approach is based on demanding standards, allowing our partners and clients to benefit from support founded on trust and precision.

Excellence is not claimed. It is demonstrated.

RESPONSIBLE JEWELLERY COUNCIL──────────

A responsible approach

JMB Diamant is a certified member of the Responsible Jewellery Council (RJC), the international benchmark for responsible practices in the jewellery industry.


RJC Certification: 0000 5189
18 November 2023 – 18 November 2026

VIEW CERTIFICATE

A DOUBLE CHECK FOR EVERY STONE──────────

Two inspections - The same standard 

Each stone is checked at two key stages of its journey to verify that it is indeed a natural diamond and not a lab-grown diamond.

01 — At the time of purchase


Control with the M-Screen+.

02 — Upon arriving at JMB Diaman


Second check-up with the Sherlock.

The Kimberley Process──────────

For responsible and transparent sourcing

JMB Diamant complies with the Kimberley Process, an international initiative designed to regulate the trade in rough diamonds and prevent the sale of conflict diamonds.

MEMBER OF THE ANTWERP DIAMOND BOURSE─────────

In the heart of a historic diamond center

JMB Diamant is a member of the Antwerp Diamond Bourse. We make our purchases there and select our stones directly from the professionals we work with, in order to guarantee a rigorous selection that meets our quality requirements.