It is an industry that was supposed to be cleaned up, after the turn-of-the-millennium­ notoriety surrounding so-called blood or conflict ­diamonds—precious stones mined in African war zones ...

Lab-grown diamonds outpace natural stones when it comes to engagement rings. Here’s why, and what to consider when shopping.

In December, Yrady proposed to Montiel in Italy with a radiant-cut diamond almost as big as a gummy bear. “Everyone and all of my girlfriends that see it are in love with it,” said Montiel ...

De Leon believes the increased affordability of lab diamonds appeals to customers navigating a volatile economy. Even celebrities see the appeal: in December, Blood Diamond star Leonardo DiCaprio was ...