RAPAPORT... Lightbox, De Beers’s lab-grown diamond jewelry brand, has delayed commissioning its new facility in Portland, Oregon, by a few months due to the COVID-19 pandemic.“The building itself and plant infrastructure [are] already complete, and we are now in a phase of installing and commissioning the deposition equipment,” Lightbox CEO Steve Coe said in an email to Rapaport News. “To ens...