From a Persian prince to the American “jeweler to the stars,” the world’s largest cut blue diamond has a lengthy history.

The second-largest diamond in the world has been discovered in Botswana. A 2,492-carat diamond has been discovered in Botswana at a mine owned by Canadian firm Lucara Diamond. The discovery ...

Elizabeth Taylor once said, “Big girls need big diamonds.” Dana Auslander agrees. The veteran hedge fund executive is shaking up the investment world, creating a unique new asset class that ...

For decades, we have been promised lab-grown diamonds that are brilliant, affordable and free from the environmental pitfalls of diamond mining. But their makers have struggled to deliver quality ...