In addition to hardness, they have an exceptionally high thermal conductivity. | Hacker News

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		Panoramix on May 24, 2014 \| parent \| context \| favorite \| on: A Diamond Market No Longer Controlled By De Beers In addition to hardness, they have an exceptionally high thermal conductivity.

wyager on May 24, 2014 [–]

Holy shit! No kidding! From wikipedia: "Monocrystalline synthetic diamond enriched in the isotope 12C (99.9%) has the highest thermal conductivity of any known solid at room temperature: 33.2 W/(cm·K)"

Copper is about 4 W/(cm*K).

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