From empires to geo-economics: Why diamonds still matter

As sanctions, wars and shifting trade alliances reshape global supply chains, one unlikely commodity continues to sit quietly at the center of geopolitics: diamonds. From antiquity to the age of empires, diamonds have traveled through the corridors of power as much as they have dazzled courts, red carpets and luxury markets. Long before modern banking systems, diamonds served as discreet stores of value, diplomatic gifts and instruments of influence beyond formal accounting. Their brilliance has never been merely ornamental.

Diamonds once functioned as a mechanism for geopolitical value transfer. Episodes such as the theft of Napoleonic-era jewels studded with diamonds and emeralds from the Louvre highlight the enduring strategic importance of these stones. In the modern era, power is no longer exercised solely through military force, but increasingly through regulation, embargoes and selective market access. In each of these domains, diamonds remain firmly embedded.

The word diamond originates from the Ancient Greek adamas, meaning “invincible,” reflecting early beliefs in its permanence. Modern geology shows that natural diamonds form deep within the Earth’s mantle — about 150 kilometers below the surface — under immense pressure, with many dating back 3.3 to 3.5 billion years.

India marks the beginning of documented commercial history for diamonds. Discoveries around 2500 B.C. in the Krishna–Godavari river basins initiated early extraction, and by 322 B.C., diamonds had reached Europe, where they became symbols of royal authority. Venice later emerged as a major trading hub, followed by Antwerp’s rise in the mid-16th century. As geologist David Bressan notes, India remained the world’s only known source of diamonds until 1650. Subsequent discoveries in Brazil (1725), parts of Africa (1867), Russia (1950), Australia (1970) and Canada (1990) transformed global supply, reshaping trade networks and reinforcing diamonds’ dual identity as luxury goods and geopolitical assets.

A pivotal technological shift occurred in 1919, when Belgian gemologist Marcel Tolkowsky introduced cutting proportions designed to maximize brilliance. This innovation standardized valuation and reshaped demand. It was later institutionalized through the rise of the Gemological Institute of America and the market dominance of De Beers. Scarcity was no longer solely geological; it became managed, with sourcing and supply control emerging as instruments of geopolitical influence.

Imperial expansion further entrenched diamonds within systems of power. Industrial-scale mining tied diamond production to colonial economies and governance structures — a concentration that persists today. Fewer than 20 countries currently produce natural diamonds.

Antwerp long served as the anchor of global diamond commerce. Today, however, the industry is undergoing a realignment. The concentrated value of diamonds has also fueled illicit trade and conflict, particularly in Sierra Leone, Angola, and the Congo. What has changed is not the nature of diamonds themselves, but the global order governing them.

This shift accelerated after the COVID-19 pandemic. As European hubs approached saturation, Dubai emerged as a dominant center. By 2024, Dubai’s diamond trade reached approximately $40 billion, including $3.7 billion in lab-grown stones. This growth followed the UAE’s 2018 tax reforms and industry consolidation.

Global diamond markets are now fragmenting. Natural diamonds remain anchored in geological scarcity, while lab-grown diamonds are driven by affordability and scalability. Despite disruption, major hubs — including Dubai, New York and Belgium — continue to prioritize natural stones. Structural supply constraints still dominate pricing, and these pressures are amplified by geopolitical shocks. The Russia–Ukraine war marked a turning point. Russia accounts for roughly 30 percent of global diamond output, and the European Union’s 12th sanctions package in December 2023 disrupted Russian flows into Belgium. Sanctions now actively shape diamond supply chains. Diamonds have entered the sanctions era.

Lab-grown diamonds further complicate the landscape. While cost-competitive and appealing to younger consumers, they lack geological scarcity — and with it, geopolitical leverage. Natural diamonds remain finite and unevenly distributed, preserving their strategic relevance in diplomacy, trade negotiations and sanctions regimes. Downstream advantages now increasingly depend on policy decisions rather than extraction alone.

Korea illustrates this logic of diversification. Although not a major diamond producer, reduced U.S. tariffs, advanced manufacturing capabilities and institutions such as the Hanmi Gemological Institute & Lab position it strategically within the value chain. As diamond applications expand into industrial and technological sectors, policy alignment and downstream capacity are becoming as decisive as geology. This shift gains significance as global market valuations are projected to approach $143 billion by the early 2030s.

Demand patterns reinforce this dynamic. The U.S. accounts for nearly 45 percent of global diamond consumption, while India processes approximately 80 percent of the world’s diamonds. Following President Vladimir Putin’s visit to New Delhi last year, Russia’s Alrosa announced plans to establish its first overseas polishing facility in India — signaling a potential rebalancing of downstream power. Yet trade remains path-dependent. Significant volumes of polished diamonds, particularly from Israel, continue to flow through the U.S., Antwerp and Hong Kong.

In a world increasingly captivated by digital assets, diamonds retain their relevance as enduring stores of value that continue to shape diplomacy, trade and strategic leverage. Markets now price not only supply and demand, but also geopolitics, compliance, and risk. Diamonds have survived empires, wars and revolutions. Today, they remain instruments of geo-economic influence, quietly illuminating how power, markets and diversification strategies intersect in a multipolar global order.

Shashi B. Bharti writes at the intersection of international strategy and global thought traditions.