From natural diamonds to lab-grown stones, the global diamond market is undergoing one of its biggest structural shifts

Introduction

For decades, diamonds were considered symbols of rarity, luxury, and long-term value. But over the last few years, the diamond industry has gone through a major transformation. Prices of natural diamonds have corrected sharply from their 2022 peaks, while lab-grown diamonds have disrupted the traditional market with significantly lower prices and rising consumer adoption.

The industry is now witnessing a split between natural diamonds, which are being positioned as rare luxury assets, and lab-grown diamonds, which are becoming affordable fashion and jewellery products.

What’s Happening to Diamond Prices?

Natural diamond prices have remained volatile over the last two years. After peaking in 2022, prices corrected due to weaker luxury demand, slowing global growth, and lower engagement ring demand in key markets like the US and China. Reports suggest natural diamond prices had fallen nearly 26% from their highs.

However, in 2025, prices of good-quality natural diamonds started stabilising and even rose around 10% in certain categories due to renewed demand across India, Europe, West Asia, and the US.

At the same time, lab-grown diamond prices have collapsed dramatically. Wholesale prices for popular 1–3 carat lab-grown diamonds fell nearly 42% year-on-year in 2025.

This sharp fall is largely because lab-grown diamonds can be produced rapidly in factories, unlike natural diamonds which are limited by mining supply.

How Lab-Grown Diamonds Are Affecting the Industry

Lab-grown diamonds are fundamentally changing consumer behaviour.

These diamonds are chemically and visually almost identical to natural diamonds but cost significantly less. A one-carat lab-grown diamond can cost nearly 70–90% less than a similar natural diamond.

This affordability has led to rapid adoption, especially among younger consumers. In the US, over half of engagement rings in 2025 reportedly featured lab-grown diamonds.

As production increased in countries like India and China, supply surged and prices crashed. This oversupply has also affected the pricing power of natural diamonds because consumers now have a much cheaper alternative with similar appearance.

The result is that the diamond market is increasingly separating into two categories:
Natural diamonds positioned as rare and emotional luxury purchases
Lab-grown diamonds positioned as affordable and fashionable jewellery.

Can You Differentiate Between Lab-Grown and Natural Diamonds?

Visually, it is extremely difficult for an average person to distinguish between a lab-grown and natural diamond. Both have the same physical and optical properties.

However, there are a few ways professionals identify them:

Certification: Trusted certifications from organisations like GIA or IGI clearly mention whether the diamond is natural or lab-grown.

Laser Inscriptions: Many certified diamonds have microscopic laser markings indicating origin.

Price Difference: Lab-grown diamonds are usually significantly cheaper than natural stones.

Specialised Equipment: Jewellers use advanced machines to detect growth patterns and trace elements unique to lab-grown diamonds.

Without certification or testing equipment, identifying them purely by appearance is almost impossible.

Recent Developments Around Diamonds

One of the biggest recent developments is the growing concern around oversupply in lab-grown diamonds. Industry leaders, including the World Diamond Council, have stated that rapidly falling prices are damaging consumer confidence in lab-grown stones.

At the same time, companies like De Beers are increasing focus on marketing natural diamonds as rare and timeless assets rather than competing directly with lab-grown products.

This suggests the industry is no longer treating both products as direct substitutes but as two separate categories targeting different consumers.

Conclusion

The diamond industry is going through a structural transition. Natural diamonds are facing pressure from changing consumer preferences and weaker luxury demand, while lab-grown diamonds are disrupting pricing through affordability and large-scale production.

The key question going forward is not whether lab-grown diamonds will replace natural diamonds completely, but whether consumers continue valuing rarity and emotional appeal enough to justify the premium attached to natural stones.