In an online world, you might think that 4-carat diamond engagement rings are a thing of the past. But it turns out they’re just not as accessible. You need to know where to look and how to identify ...

Not to be confused with imitation diamonds, made from glass or plastic, lab-grown diamonds are real diamonds created in a laboratory using a sophisticated process. Lab-grown diamonds are often cheaper ...

One of the world’s most popular types of rough diamonds has plunged into a pricing free fall, as a growing number of Americans choose engagement rings made from lab-grown stones instead. Diamond ...

Researchers have succeeded in creating a rare type of diamond, known as lonsdaleite or hexagonal diamond. This material, whose hardness could surpass that of conventional diamonds, opens new ...