Scientists Have Created Diamonds in The Lab Without Heat

[HAL9000]

The process is designed to make industrial diamonds rather than the bling version, I thought it was interesting..

A small chip of graphite-like carbon was subjected to both extreme shear forces and high pressures, to encourage the formation of diamond.

Unlike most previous work on this front, no additional heating was applied to the carbon sample during compression. Using advanced electron microscopy — a technique used to capture very high-resolution images the resulting sample was found to contain both regular diamond and Lonsdaleite.

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The ability to make diamonds at room temperature, in a matter of minutes, opens up numerous manufacturing possibilities.

Specifically, making the "harder than diamond" Lonsdaleite this way is exciting news for industries where extremely hard materials are needed. For example, diamond is used to coat drill bits and blades to extend these tools' service life.

For The First Time Ever, Scientists Have Created Diamonds in The Lab Without Heat

In nature, diamonds form deep in the Earth over billions of years.

www.sciencealert.com

Sythetic diamonds are already used in a wide range of applications..

Synthetic diamond tweeters (I think they can be found in Rolls-Royce cars)
Photonics (transparent window allowing a broad range of frequencies to pass through)
Cutting/grinding tools