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The prices of natural diamonds have collapsed by 6.4% this year alone, and the industry giant De Beers, the world’s largest diamond producer by value, faced its worst year in two decades. One of the primary reasons behind this downturn is the rise of lab-grown diamonds, which are gaining popularity for their affordability and identical properties to natural diamonds.

The Shift in Demand: Natural vs. Lab-Grown Diamonds

The diamond industry in India is also seeing a slowdown, particularly with exports to China declining significantly since the pandemic. But what’s the real issue here? The surge in demand for synthetic diamonds, also known as lab-grown diamonds, is posing a real challenge to the natural diamond market. More consumers are opting for lab-grown diamonds due to their lower cost and the fact that they are virtually indistinguishable from natural diamonds in terms of physical and chemical properties.

Lab-grown diamond sales have seen a meteoric rise, from less than $1 billion in 2016 to an impressive $12 billion in 2023. Furthermore, the market volume for synthetic diamonds is expected to double from 9 million carats to over 19 million carats by 2030, driven by growing consumer demand.

Similarities Between Natural and Lab-Grown Diamonds

To the untrained eye, there is no visible difference between natural and lab-grown diamonds. Both types of diamonds share the same physical and chemical properties, including hardness, refractive index, and crystal structure. Lab-grown diamonds are created using high-pressure, high-temperature (HPHT), or chemical vapor deposition (CVD) methods, replicating the natural conditions under which diamonds form in the Earth’s mantle. This means that lab-grown diamonds are as durable and brilliant as their natural counterparts.

The Economic Impact and Market Trends

The production cost of lab-grown diamonds has significantly decreased over the years, from $4,000 per stone in 2008 to just $400-500 per stone in 2023. This dramatic reduction in production costs has made lab-grown diamonds more accessible to a broader range of consumers, further driving their popularity.

India’s lab-grown diamond industry has experienced substantial growth, now accounting for 15% of global production and ranking as the second-largest producer after China. The recent surge in gold prices has also contributed to the increasing traction of lab-grown diamonds, as consumers look for more affordable alternatives to traditional gemstones.

However, the lab-grown diamond industry has faced its own set of challenges. The sudden surge in supply led to a sharp drop in prices recently, resulting in a 16.5% decline in export values in FY24. Despite this, sales volumes are increasing, and there are expectations of a market recovery in FY25.

Government Support and Industry Growth

Recognising the potential of the lab-grown diamond industry, the Indian government has taken steps to support its growth. Finance Minister Nirmala Sitharaman announced a reduction in basic customs duty on seeds used in lab-grown diamond manufacturing from 5% to nil in the Budget 2023-24. This move is expected to boost India’s lab-grown diamond exports despite the declining reserves of natural diamonds.

In a symbolic gesture showcasing India’s leadership in sustainable diamond technology, Prime Minister Narendra Modi gifted an eco-friendly lab-grown 7.5-carat diamond to US First Lady Jill Biden in June last year. This act not only highlighted the quality and sustainability of lab-grown diamonds but also underscored India’s position in the global diamond industry.

The Emotional Connection with Diamonds

Despite the rise of lab-grown diamonds as a viable and cheaper alternative, natural diamonds still hold a special place in people’s hearts. Diamonds have a long history of symbolising love, commitment, and special moments, and many consumers have an emotional attachment to the idea of owning a natural diamond.

As the diamond industry navigates this transformative period, it’s clear that both natural and lab-grown diamonds will continue to coexist, each catering to different segments of the market. Whether driven by tradition or sustainability, the choice between natural and lab-grown diamonds ultimately lies in the hands of the consumer.

The diamond industry is undergoing a significant transformation, with lab-grown diamonds emerging as a formidable competitor to natural diamonds. The substantial drop in natural diamond prices, coupled with the rise in demand for lab-grown alternatives, signals a shift in consumer preferences. As the industry adapts to these changes, it will be interesting to see how natural and lab-grown diamonds continue to shape the market and the way we perceive these precious gems.