The majority of natural diamonds are found in Africa, and the extraction process often displaces huge portions of land and wildlife while requiring the use of damaging diesel generators and, of course, extreme manual labour. Despite their enormous efforts, millions of African diamond miners earn less than a dollar a day.
Officially the biggest jewellery brand in the world - creating around 100 million pieces every year - it announced last year that not only would it be carbon neutral by 2025 and use 100% recycled metals by the same period, but it also switched to 100% renewable energy in its crafting facilities.
https://www.glamourmagazine.co.uk/article/pandora-brilliance-lab-grown-diamonds