Diamonds have long been the ultimate symbol of love and commitment, their sparkling brilliance forever linked to life’s most emotional moments. Thanks to decades of marketing genius—most notably from ...

Experts explain the difference between lab-grown and natural diamonds, along with which one to buy. Editors share their favorite retailers to shop for jewelry.

Diamond is well-known for being the hardest natural material on Earth, though synthetic forms have been developed that are even tougher – a feat that researchers have managed again, through a new ...