HOW DO SCIENTISTS 'GROW' DIAMONDS IN A LABORATORY?

Diamonds fetch their lofty price tags because they form over millions of years under high pressures and temperatures deep within the Earth's crust.

But a number of companies are now growing the gems in laboratories across the world, threatening to shake up the diamond industry.

A small 'seed' diamond acts as a scaffolding for the process.

Scientists first place this seed into a vacuum chamber to remove

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