Diamonds: lab-grown vs mined

Diamonds in places like Sierra Leone have long had a tarnished association with war and corruption – blood diamonds, as they’re known. There’s now also the economic threat of synthetic, lab-grown diamonds. Can traditional mining compete? And are natural diamonds really so much worse for us, for the planet, than their new rivals, grown in a lab?

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Producer/presenter: Ed Butler Sound engineer: Toby James

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(Photo: A diamond specialist inspects an uncut rock. Credit: Getty Images)