Inside India’s Lab-Grown Diamond Boom: From Surat’s Workbenches to a Global Industry

A diamond once took billions of years to form beneath the earth. Today, it can be grown in a laboratory in a matter of weeks — and increasingly, those diamonds are being grown, cut, and polished in India.

Lab-grown diamonds (LGDs) have evolved from a niche category into a significant force in global jewellery. Industry estimates suggest the market could reach USD 80–90 billion by the early 2030s, and India is already central to that story. An estimated 90–95% of the world’s jewellery-grade lab-grown diamonds are cut and polished in Surat.

That single statistic highlights how decisively the industry’s centre of gravity has shifted.

Surat’s Manufacturing Advantage

Surat’s rise in lab-grown diamonds did not happen overnight. For decades, the city has been the backbone of the natural diamond industry, developing deep expertise in cutting, polishing, and precision manufacturing. When lab-grown diamonds emerged, the industry did not need to build an ecosystem from scratch; it simply leveraged the one that already existed.

Skilled labour, specialised machinery, and well-established supply chains allowed Surat to scale rapidly. As a result, the city has become indispensable to the global LGD value chain, even if most consumers remain unaware that the diamond in their ring likely passed through Surat before reaching a retail shelf.

Retail Is Evolving Alongside the Category

For years, lab-grown diamonds were marketed primarily as affordable alternatives to natural diamonds. That positioning is now changing.

Organised jewellery retailers are increasingly launching dedicated LGD collections rather than treating the category as a budget option. Lab-grown stones are finding their place in premium and bridal segments — spaces once dominated exclusively by natural diamonds.

Consumer attitudes are shifting as well. Younger buyers appear less concerned about the natural-versus-grown debate and place greater emphasis on design, aesthetics, and personal expression. Affordability remains a key growth driver, but it is no longer the sole selling proposition. Retailers are increasingly positioning LGDs around style and identity, signalling a maturing category.

Beyond Jewellery: A Technology Story

Technological advancements continue to strengthen the industry’s prospects. Improvements in crystal-growth techniques are delivering more consistent quality, while automation and precision engineering are enhancing cutting, polishing, and quality control processes.

Much of this progress happens quietly, yet it is essential for maintaining international standards and supporting large-scale production.

The implications extend beyond jewellery. The same technologies used to produce gem-quality diamonds can also create advanced materials for applications in electronics, optics, and other industrial sectors, where diamond’s exceptional hardness and thermal conductivity offer significant advantages. While still an emerging opportunity, it suggests that the industry could eventually evolve into a broader precision materials ecosystem.

The Road Ahead

India already commands a dominant position in manufacturing, built on decades of expertise inherited from the natural diamond trade. Retail adoption is expanding, technology continues to advance, and new industrial applications are beginning to emerge.

Challenges remain, and market adoption is unlikely to follow a perfectly linear path. Yet the broader direction is clear: India is no longer merely participating in the lab-grown diamond industry. In many respects, it is helping define its future.