Diamonds Feel Cold Because They Are Excellent Heat Conductors

Diamonds have the highest thermal conductivity of any known material, meaning they rapidly draw heat away from your skin when touched. This quick heat transfer makes them feel noticeably cooler to the touch compared to other objects at the same ambient temperature, a property used in diamond testing.

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https://en.wikipedia.org/wiki/Diamond

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Published: March 29, 2026
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Cool Physics Materials Diamond Thermal Conductivity Heat Transfer Gemstone Material Science Carbon

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