This segment was originally published on Oct. 15, 2021.

This week on Under the Radar, we present a special encore edition of one of our favorite segments from the year.

In 2021 diamond sales shot up 30 percent from 2020. Consumer demand coupled with COVID-19 restrictions led to global diamond shortages. It also led to a more vocal movement calling for a shift away from mined diamonds toward so-called ethical or conflict-free diamonds.

But the reality is complicated. For example, where do lab-grown diamonds fit into the picture? And how do millennials who support sustainable practices navigate potential "greenwashing" in the jewelry industry?

GUESTS:

Raquel Alonso-Perez, curator of Harvard University’s Mineralogical and Geological Museum.

Craig Rottenberg, president of Long’s Jewelers in Boston and vice chair of Jewelers of Americas Board of Directors.