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Inside India’s lab-grown diamond industry

Diamonds have long been marketed as a girl's best friend. But their extraction from the ground has damaged our relationship with the environment. Extracting a single one carat diamond can mean the removal of hundreds of tonnes of earth, a process that consumes vast amounts of fresh water and fossil fuels, and has other side effects include deforestation and river pollution.

But what if there was a more sustainable - and cheaper - option? Priti Gupta visited a lab in India to find out more.