BBC Future Planet: The sparkling rise of the lab grown diamond

Young people are falling out of love with mined diamonds because of their high environmental and humanitarian costs. How do their alternative, lab-made diamonds, measure up?

On a grey January morning in 2019 Meghan Markle emerged onto a London street on her way to a meeting. She wore a smart coat and heels, but it was not her clothing that caught the attention of the world. It was a pair of glittering drop earrings embedded with diamonds that had been grown in a lab…

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