Almost a year later, the final results are in, with conclusive data about COVID-impacted 2020 being provided by De Beers in its recently released Insight Report. According to the document, global demand for diamond jewelry in 2020 declined by an estimated 14 percent year-on-year to $68 billion, mostly as a result of a sharp drop in sales during in the six months of the year, was followed by moderating second six months.