Are Mined Diamonds Still Worth the Investment? Exploring Alternatives
Trends3 Minutes Read

Are Mined Diamonds Still Worth the Investment? Exploring Alternatives

April 1, 2025
Banner image courtesy of Tahlia Doyle

For decades, mined diamonds have been considered a luxury item and, to some extent, an investment opportunity. However, with the rise of lab-grown diamonds and other alternatives, the question arises: Are mined diamonds still worth the investment? 

According to Grand View Research, the global diamond jewelry market was valued at $340.6 billion in 2022 and is expected to grow at a 4.6% CAGR through 2030. This growth is largely driven by the expanding beauty and fashion industry, where evolving consumer preferences play a crucial role. 

However, shifting attitudes toward sustainability, affordability, and resale value raise questions about the future of mined diamonds as an investment. This article explores the market dynamics, comparing the value of natural diamonds versus lab-grown and simulated options. 

The Investment Case for Mined Diamonds

Mined diamonds have long been regarded as valuable assets due to their rarity, beauty, and historical significance. As symbols of luxury and exclusivity, they have maintained a strong presence in the high-end jewelry market. 

The scarcity of high-quality natural diamonds plays a crucial role in their perceived investment potential, as limited supply can drive appreciation over time. Additionally, cultural and emotional significance further reinforces their desirability.

However, the investment case for mined diamonds is not without challenges. The diamond market is often opaque, lacking the transparency and liquidity found in traditional investment assets. Predicting resale values can be difficult, and some critics argue that industry marketing has contributed to artificially inflated perceptions of value. 

Even then, according to Forbes, mined diamonds tend to retain more resale value than lab-grown diamonds, which have seen steep price declines. Data shows that lab-grown diamonds currently cost about 83% less than natural diamonds. Over the past year, their prices have dropped by 16.64%, compared to an 8.90% decrease for mined diamonds. 

For those considering diamonds as a long-term investment, the exclusivity of natural diamonds may provide a stronger value proposition than lab-grown alternatives.

Alternatives to Mined Diamonds

Alternative stones to diamonds include options such as lab-grown diamonds, moissanite, and cubic zirconia.

What are Lab-Grown Diamonds?

Lab-grown diamonds, also called cultured diamonds, are created using advanced technologies that mimic natural diamond formation in controlled environments. These diamonds possess the same physical and chemical properties as natural diamonds but typically cost much less.

According to Statista, in 2021, the U.S. imported 257 million carats of synthetic diamonds, while global synthetic industrial diamond production reached 15.4 billion carats. U.S. exports of synthetic industrial diamonds have risen significantly, increasing from 65.5 million carats in 2009 to 88.1 million carats by 2020.

Sustainability is a key advantage of lab-grown diamonds. Unlike mined diamonds, which involve extensive extraction that can damage ecosystems, lab-grown diamonds minimize environmental disruption. However, their production still has an ecological footprint, mainly due to high energy consumption, especially when non-renewable energy sources are used.

What are Simulated Diamonds?

Simulated diamonds, distinct from lab-grown diamonds, are materials crafted to resemble diamonds without sharing their chemical composition. As Leibish notes, this category includes various manufactured stones, from clear glass to cubic zirconia (CZ). It also includes moissanite, a colorless created stone significantly cheaper than natural diamonds.

These alternatives offer a budget-friendly option for those prioritizing appearance over authenticity. While several diamond alternatives exist within this category, simulated diamonds lack the inherent value and market demand for long-term investment. Their primary appeal lies in affordability rather than potential appreciation.

Market Trends and Future Outlook

The diamond market is undergoing significant shifts as consumer preferences lean toward sustainability and affordability. Lab-grown diamonds are gaining traction due to their eco-friendly production and lower costs, making them an attractive alternative. However, mined diamonds continue to hold strong appeal, valued for their rarity, natural origin, and historical significance.

The future of the diamond market will likely see both mined and lab-grown diamonds coexisting, each catering to distinct consumer segments. Those seeking exclusivity and long-term value may continue investing in natural diamonds, while eco-conscious buyers and budget-savvy consumers may prefer lab-grown alternatives.

Additionally, according to Rapaport, the diamond market showed signs of recovery in March, with price stabilization trends expanding across various categories. The RapNet Diamond Index (RAPI™) for 1-carat goods rose 1.4%, while 0.30-carat diamonds saw a notable 6.5% increase. Moreover, D to F, IF to VVS1 diamonds in this size experienced over 10% growth, reflecting renewed market confidence.

FAQs

How can I ensure I’m purchasing an investment-grade natural diamond?

To ensure you’re purchasing an investment-grade natural diamond, focus on high-quality stones with excellent cut, clarity, color (D-F), and carat weight. Verify certification from reputable labs like GIA. Opt for rare diamonds with strong resale value, and buy from reputable dealers with transparent pricing and buyback policies.

What documentation should I maintain for diamond investments?

For diamond investments, maintain documentation such as the diamond’s grading report (e.g., GIA or IGI certificate), purchase receipt, appraisal report, and insurance policy. Also, keep proof of provenance, resale agreements, and any market valuation records to ensure authenticity, track value, and facilitate future resale or insurance claims.

How does the resale process work for natural diamonds compared to alternatives?

Natural diamonds typically retain more resale value than alternatives like lab-grown or simulated diamonds. Buyers can sell them through jewelers, auction houses, or online platforms, though prices depend on market demand and diamond quality. In contrast, lab-grown and simulated diamonds have lower resale value due to declining prices and limited demand.

While lab-grown diamonds offer a sustainable and affordable alternative, mined diamonds still hold a unique value proposition as an investment. Their rarity, cultural significance, and historical appeal make them a sought-after luxury item. However, investors should be aware of the market dynamics and challenges associated with diamond investments, including a lack of transparency and liquidity.

Ultimately, whether mined diamonds are worth the investment depends on individual priorities—be it exclusivity, sustainability, or financial return. For those who value the intrinsic qualities of natural diamonds, they remain a viable choice. 

Please note this article may include advertisements.
Author: DDW Insider
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