Would You Buy Diamonds Grown on Demand?

It’s a humid summer morning in New York, and Mona Akhavi, CEO of Vrai, the lab-grown jewelry line backed by Leonardo DiCaprio and other high-profile investors, is recounting the company’s recent orders via Zoom. “It’s insane,” she says, matter-of-factly. “We’re getting orders for 10-carat diamonds once a week. We just had a 10-carat gradient diamond…