In 2018, De Beers, the 136-year-old diamond company, shocked the jewellery industry when it announced that after years of resistance, it would begin selling lab-grown stones through a new brand called Lightbox.
Just six years later, on Friday, De Beers announced at the JCK jewellery trade show in Las Vegas that it would stop producing lab-grown diamonds for jewellery. Lightbox will continue to exist, but will source stones from existing…