【Tokyo, Japan】Gold Prices Soar, Natural Diamonds Plunge – The Rise of Lab-Grown Diamonds in the Background

Editor’s Note

This article examines the sharp decline in natural diamond prices amid record-high gold values, highlighting the rise of lab-grown diamonds as a key market disruptor. While chemically identical to their mined counterparts, synthetic alternatives are reshaping consumer preferences and industry dynamics.

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Natural Diamond Prices Fall, What’s the Background?

As of 2025, while gold prices continue to hit record highs, the price of “natural diamonds” is plummeting. The backdrop to this price collapse is the proliferation of lab-grown diamonds (synthetic diamonds), which possess “the same composition as natural” ones.
Lab-grown diamonds are chemically identical to natural diamonds in terms of composition, optical properties, hardness, and refractive index, yet they are gaining attention as a new alternative due to their lower environmental impact and price.

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Presenting a New Value Proposition in the Form of “Gem Fruit”

The “fruit” is a new form designed to savor the pure brilliance of the gemstone itself. It’s a concept that overturns jewelry conventions, allowing one to enjoy the charm of the stone alone, unconstrained by prongs or settings.
RAIN also offers other “Gem Fruit” series items, including ruby, sapphire, emerald, and pink diamond.

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Currently, the “Diamond Fruit” has very limited stock remaining, and the next restock date is undetermined.

“The ‘fruit’ is a new form designed to savor the pure brilliance of the gemstone itself.”
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⏰ Published on: October 14, 2025