A natural 100-carat diamond. The largest polished synthetic diamond is about 10 carats. Photo: Stefan Wermuth/Reuters

Here’s how scientists grow perfect diamonds in the lab

Synthetic diamonds provide an alternative for those who question the ethical practices and environmental impact from mining naturally forged stones

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A natural 100-carat diamond. The largest polished synthetic diamond is about 10 carats. Photo: Stefan Wermuth/Reuters
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