【USA】Synthetic Diamond Boom Drives Down Natural Diamond Prices, Exposing Limits of Image Marketing?

Editor’s Note

This article examines a significant shift in the jewelry market, where the rising popularity of affordable lab-grown diamonds is applying downward pressure on the prices of natural stones and challenging traditional mining operations.

Natural Diamond Prices Fall as Synthetics Gain Popularity

The rapid spread of synthetic diamonds is dramatically reshaping the jewelry market landscape. As younger generations, particularly in the United States, begin to embrace lab-grown diamonds, the price of natural diamonds has fallen, impacting the mining business.
Affordable synthetic diamonds (lab-grown) are rapidly gaining popularity and eroding demand for natural diamonds.
In the US, reports indicate synthetic diamonds now account for over 40% of the engagement ring market, with a growing trend, especially among younger people, of not being fixated on a stone being “natural.”
Experts point out that synthetic diamonds are identical in appearance and chemical composition to natural ones, with the only difference being whether they were mined or created in a lab.

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“The image of natural diamonds has suffered due to issues like conflict and labor exploitation in their regions of origin, which is why ethically ‘clean’ synthetic diamonds are gaining support.”

With prices falling, mining costs are becoming unjustifiable, leading to a succession of closures and production cuts at natural diamond mines, creating headwinds on the supply side as well.
Barring some ultra-luxury items and rare stones, the view is emerging that the natural diamond market will face a tough environment for some time to come.
The traditional image advertising slogan “A Diamond is Forever” is losing its power, and the very premise that “natural = luxury” is beginning to waver.

An Era Ending Due to Technology and Changing Values
リテラシーアゴラ

The era where natural diamonds remained a symbol of luxury is coming to an end due to technological advances and shifting values. The adoption of synthetic diamonds is expected to continue, and the trend of a shrinking natural market is likely to persist for a while. It may be said that brands and the jewelry industry are entering a stage where they are being forced to fundamentally redefine value itself.

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⏰ Published on: January 13, 2026