The Truth About Lab-Grown Diamonds: Why Rosendorff Diamonds Stands by Natural Diamonds

Why Lab-Grown Diamonds Are Not the Future of Fine Jewellery

According to Martin Rapaport—one of the diamond industry’s foremost experts—the recent surge in synthetic diamonds is driven more by profit than by ethics. Numerous jewellery brands have marketed lab-grown diamonds as being on par with natural diamonds, despite critical differences in rarity, value, and emotional significance.

Rapaport points out that major industry forces—including De Beers, GIA, and Signet Jewelers—have openly supported synthetic diamonds, fully aware that their value would collapse due to unlimited supply. As prices continue to tumble, the early adopters who paid premium prices for lab-grown diamonds will inevitably feel misled, undermining consumer trust in the jewellery industry.

The Inevitable Crash of Synthetic Diamond Prices

Lab-grown diamond prices have already begun their rapid decline. Initially marketed at only a slight discount to natural diamonds, synthetic stones have seen a steady drop in value because they can be mass-produced. With production capacity ever-increasing, lab-grown diamonds are expected to have minimal, if any, resale value.

This devaluation will leave many buyers disappointed, eroding trust in retailers that advertised lab-grown diamonds as a meaningful, enduring investment. Rapaport predicts that the surge in synthetics could reduce short-to-medium-term demand for natural diamonds by as much as 30%, with recovery taking years.

Rosendorff Diamonds’ Commitment to Natural Diamonds

Rosendorff Diamonds has never sold—and will never sell—lab-grown diamonds. We stand by our founding principles of excellence and integrity. Natural diamonds, shaped over billions of years, carry a unique story of rarity and beauty that synthetic diamonds simply cannot replicate.

While other jewellers chase higher margins by embracing lab-grown diamonds, we remain devoted to offering only the finest natural diamonds, set in 18ct gold, for uncompromising quality and lasting value.

The Erosion of the Diamond Dream

For generations, the act of presenting a rare, valuable diamond as a symbol of love has defined engagements and milestones. However, the rise of inexpensive synthetic diamonds threatens to diminish this long-held tradition.

As lab-grown diamond prices continue to plummet, they will lose their appeal for engagement rings. Many may come to feel that a synthetic diamond, despite its similar appearance, holds little genuine worth. In turn, affluent buyers may shift their interest to other precious natural gemstones, further separating themselves from the synthetic market.

Preserving the Legacy of Natural Diamonds

The value of natural diamonds is anchored in their history, scarcity, and profound emotional significance. Far more than mere commodities, they represent cherished moments, milestones, and commitments that span a lifetime.

As Martin Rapaport warns, those who compromise the intrinsic value of natural diamonds for short-term profit risk damaging the industry’s credibility. In the long term, this loss of trust will harm reputations and drive consumers away from traditional jewellers.

Final Thoughts

At Rosendorff Diamonds, our dedication to natural diamonds is unwavering. We believe that true luxury is rooted in authenticity, which is why we remain committed to offering ethically sourced, natural diamonds that retain their value—and their story—over time.

Whether you’re searching for an engagement ring, a milestone anniversary piece, or a timeless heirloom, choose a genuine natural diamond. Its legacy is as precious and rare as your own love story.

Discover our collection of natural diamonds today.

Why Is Rosendorff Diamonds Giving Away Free Lab-Grown Diamonds with Purchases?

At Rosendorff Diamonds, we have always championed the rarity, beauty, and lasting worth of natural diamonds. Their intrinsic value makes them the perfect representation of love and commitment. Unlike synthetic diamonds, which can be mass-produced, natural diamonds carry genuine emotional significance.

Nonetheless, with lab-grown diamonds now prevalent in the market—and widespread confusion surrounding their real value—we are taking a bold step to educate our clients.

1. Exposing the Truth About Lab-Grown Diamonds

Many consumers have been led to believe that lab-grown diamonds are comparable to natural diamonds in worth. In reality, synthetic diamonds, produced without genuine scarcity, are subject to drastic price drops. By giving these stones away for free, we underscore their true market value—virtually nothing.

2. Highlighting the Difference Between Natural and Lab-Grown Diamonds

Placing a complimentary lab-grown diamond next to an authentic Rosendorff natural diamond reveals the stark contrast. While a synthetic diamond might look similar at first glance, it lacks the rich history, prestige, and meaningful sentiment that only a natural diamond can offer.

3. Protecting Our Clients from Questionable Purchases

Countless jewellers continue to sell lab-grown diamonds at prices far exceeding their actual worth. With resale values tumbling, many buyers end up disappointed. By including a lab-grown diamond free of charge, we ensure our clients never pay a premium for a product that is rapidly depreciating.

4. Reinforcing Our Commitment to Natural Diamonds

Rosendorff Diamonds does not—and will never—sell lab-grown diamonds. However, we believe in full transparency. Rather than allowing our customers to spend thousands on something with negligible future value, we invite them to see for themselves that synthetic diamonds lack the enduring worth found only in natural diamonds.

The Bottom Line

We stand by the authenticity, rarity, and legacy of natural diamonds. If lab-grown diamonds held substantial value, we wouldn’t be giving them away for free.

By doing so, we’re making a clear statement—to educate, protect, and empower our clients. When you choose a natural diamond from Rosendorff, you choose enduring beauty, genuine value, and the timeless symbol of love and commitment.