How India Became a Lab Diamond Powerhouse

For decades, Surat has been known as the world leader in diamond cutting and polishing. Today, the same city is redefining the industry by growing diamonds instead of mining them. Companies like Greenlab Diamonds are at the heart of this shift, producing diamonds at large scale, according to the BBC report, in CVD (Chemical Vapor Deposition) reactors. Unlike the HPHT method, CVD does not copy the crushing pressure deep inside the earth: it grows diamond at very low pressures of less than 1 atmosphere in a vacuum chamber.

This process creates diamonds with essentially the same chemical, physical and optical properties as natural ones, yet faster to produce, created without mining, and significantly more affordable. Each lab diamond begins as a small crystal “seed” that grows into a rough diamond in a matter of weeks, while some natural diamonds formed as long as three billion years ago.

The Rise of Mining-Free Luxury

According to the BBC, Greenlab powers its diamond-growing operation using solar and wind energy, and the company claims 100% renewable electricity. This matters because lab-grown production is energy intensive: reported figures range from about 77 kWh to more than 1,000 kWh per polished carat depending on the producer and method, and the FTC has said marketers must have a reasonable basis for any environmental claim they make. Greenlab’s claim is the company’s own and has not been independently verified here.

Why Lab Diamonds Are Gaining Global Trust

Once viewed as alternatives, lab diamonds now lead in innovation and transparency. Consumers in India and abroad are choosing them not just for the price (in Canada in late 2023, nearly 70 per cent cheaper than their natural counterparts, and the gap has widened since) but also for what they represent: progress, science, and a mining-free origin. For buyers seeking authenticity and luxury, lab diamond engagement rings are becoming the new standard of beauty.

How Diamonds Are Made in a Lab

Lab diamonds form in sealed plasma reactors where a hydrogen and carbon-containing gas, such as methane, breaks down into carbon atoms. Those atoms layer over a diamond seed, growing a diamond crystal. The finished rough is cut and polished just like a mined diamond. As the BBC video shows, even professional jewelers cannot distinguish them by eye; separating them takes trained gemologists and advanced laboratory instruments.

India’s Growing Role in the Global Market

GIA reports that India’s output of laboratory-grown diamonds using the CVD method has accelerated dramatically, supported by an estimated 4,000 to 6,000 reactors, many of them in Surat. China remains the largest producer overall, mostly using HPHT. Greenlab’s success is inspiring new manufacturers across Surat and Mumbai, positioning India as a global hub of lab diamond innovation. This new “Diamond City 2.0” is shaping how future generations will define true value in jewelry.

Where to Buy Certified Lab Diamonds

At Future Jewellery, we showcase IGI-certified lab diamond engagement rings designed with precision and crafted in solid gold. Explore our most sought-after shapes and carat weights below:

• 2 Carat Lab Diamond Rings
• 3 Carat Oval Lab Diamond Rings
• 3 Carat Radiant Cut Lab Diamonds
• Solitaire Lab Diamond Rings

Design a Custom Lab Diamond Ring