Natural Diamond Trustmarking

Confidence, made visible

In today’s market, trust is everything. Natural Diamond Trustmarking builds on expert verification to provide a permanent, physical mark of assurance. This service gives confidence for both retailers and their clients.

Each trustmark represents clarity, integrity, and the reassurance that what is being presented is genuinely natural.

Every trustmarked diamond offers

  • Confirmation of a 100% natural diamond, verified by the Institute of Diamonds

  • A permanent inscription, applied with precision and care

  • The assurance of independent expertise and advanced analysis

  • A clear and visible symbol of authenticity at point of sale

  • Enhanced confidence for both retailer and client

Authenticity

At the heart of every trustmark is certainty.

Each Institute of Diamonds inscription confirms the natural origin of the diamond, reinforcing what makes it rare and valuable. It is a quiet but powerful statement that is grounded in expertise and supports consumer confidence

Assurance

Natural Diamond Trustmarking transforms verification into something enduring.

Applied with precision, the trustmark becomes a lasting signature that is carried with the diamond throughout its lifetime. It provides reassurance not only at the moment of purchase, but long after.

Confidence

From showcase to final selection, confidence is essential. The presence of a trustmark supports clear, confident storytelling and gives both retailers and clients reassurance in what they are buying. It supports trust and transparency in every interaction.

Expertise you can rely on

The Institute of Diamonds is dedicated exclusively to natural diamonds. As part of the De Beers Group, it combines advanced technology with deep expertise to deliver trusted, independent verification.

Natural Diamond Trustmarking builds on this foundation and provides not only assurance, but a visible and enduring symbol of integrity.

Discover Natural Diamond Trustmarking

A simple mark, carrying lasting meaning.

To learn more about Natural Diamond Trustmarking, please contact the Institute of Diamonds.

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