Inside India’s lab-grown diamond industry - BBC News

The city of Surat is known as the ‘Diamond City’ of India, thanks to its famous diamond cutting and polishing industry.

Now one company in the city, Greenlab Diamonds is turning its eye to lab-grown diamonds.

But how do you 'grow' a diamond? And just how sustainable are they?

This video is from BBC Click, the BBC’s flagship technology programme.

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