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Partnerships: the competitive advantage in the diamond sector

25 Feb 2026 | Market News

In a recent Mining Indaba TV interview, Gareth Penny, Chairman of Ninety One and former Group CEO of De Beers, offered a clear and urgent message to the global diamond value chain: collaboration is no longer optional; it is the industry’s only path to long‑term survival.

Verbatim

“I’ve never seen a collection of forces as challenging as you have today.”
On the scale of today’s challenges
“You know, I’m an optimist, so I think they’re all within the industry’s control.”
On optimism and industry control
“It comes back to the heart of the theme of this year’s Indaba around partnership. The industry must work together collectively, right across the pipeline…”
On partnership as the central theme
“At the moment, there is a sort of a negative narrative that’s out there around diamonds and around what’s happening with synthetics… and whether the natural diamond business can compete with synthetics.”
On messaging and the current negative narrative

With more than 40 years of experience in mining, diamonds, energy, and global investments, Penny has witnessed multiple cycles of transformation across commodities. But today’s diamond landscape, he argues, is uniquely complex, defined by shifting consumer expectations, geopolitical fragmentation, and disruptive substitutes such as lab‑grown diamonds. For business leaders across the diamond pipeline, Penny’s analysis underscores a critical truth: meaningful partnerships are becoming the most important strategic asset for the natural diamond industry.

A sector at a crossroads

Penny highlights that consumer trust, particularly among younger demographics, has emerged as one of the sector’s most fragile assets. Buyers increasingly demand proof of ethics, environmental stewardship, and traceability, placing pressure on producers, traders, and retailers to demonstrate responsible practices. Yet despite substantial progress with certification schemes and provenance technologies, trust gaps remain. These vulnerabilities are amplified by:

Geopolitical tensions: disrupting supply chains and affecting perceptions of origin
Competition from lab-grown diamonds: that offer a clear sustainability narrative and transparent pricing
Fragmented marketing efforts: leaving consumers uncertain about the value proposition of natural diamonds

Against this backdrop, Penny argues that isolated responses from individual companies will not be enough. The industry must collectively reinforce the story of natural diamonds, where they come from, how they are produced, and why they continue to matter.

The power of collective action

Reflecting on earlier chapters in diamond history, Penny noted that the sector has succeeded most when it has acted as a unified ecosystem. Industry-wide governance structures, shared marketing platforms, and cooperative initiatives have historically helped foster consumer confidence and market stability. Today, he believes, the same principles are needed – only now with greater urgency. Effective collaboration must involve:

Producers, aligning on sustainability standards and traceability protocols
Marketers, working together to articulate the emotional and cultural significance of natural diamonds
Retailers, ensuring transparency and consistent messaging at the customer interface
Governments, providing regulatory clarity and fostering investment-friendly environments

Penny emphasized that no stakeholder can rebuild trust alone. The diamond industry must adopt a coordinated approach grounded in responsible governance and sustainability best practice.

Where deeper partnerships are most needed

According to Penny, the priority is improving the credibility and interoperability of traceability systems. Today’s luxury consumers want certainty, and partnerships across the supply chain are essential to streamline data, certification standards, and consumer-facing information. Then, the industry must re-establish a unified marketing voice. Lab-grown diamonds have succeeded partly because of consistent messaging. Natural diamonds must respond not with defensive arguments, but with a compelling and shared narrative about rarity, community impact, and long-term value. Finally, Penny stresses collaboration with host governments. Policy stability, investment governance, and mutual benefit frameworks are key to ensuring that natural diamonds continue to contribute meaningfully to national economies while maintaining global competitiveness.

Remaining relevant in a rapidly evolving market

For business leaders, Penny’s guidance offers a clear strategic framework: strengthen partnerships, prioritize governance, deepen sustainability integration, and unify messaging. As luxury consumption becomes increasingly driven by values rather than solely aesthetics, brands and producers that can demonstrate trustworthiness will be the ones that endure. In Penny’s words, the natural diamond industry is at a pivotal moment. Its future relevance will depend not on the actions of individual companies, but on whether the sector can align around a shared mission. Collaboration, once a supporting strategy, has now become the central route to resilience.

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