Program aims to educate young consumers about mined stones’ positive qualities.
Some 142 million will turn up this year, NRF predicts.
Figure beat NRF’s original prediction by more than 18 million.
Average outlay on gifts will be 5% above last year, NRF projects.
US e-commerce sales expected to rise 2.5% year on year, compared to 9% in 2021, Adobe says.