In 1948 the necklace mysteriously vanished from Patiala's royal treasury. Thirty-two years later, it surfaced at an auction ...

When De Beers found itself with a glut of gems and no buyers, it used glamour and royalty to create a market where none ...

The campaign comes as De Beers announced earlier this year that it is pulling back from synthetic diamonds in jewelry. Prices for lab-grown diamonds have collapsed over the past half-decade, resulting ...