Carbon forms the graphite in pencils, the diamonds in jewelry and the molecules that make up every living thing. But under ...

Oval engagement rings are a classic choice for a reason. We break down everything to know about the popular cut from its history to unique setting choices for the stone.

Researchers named it lonsdaleite, after crystallographer Kathleen Lonsdale, but for decades, no one was sure it truly existed. For 60 years, the material had only been reported in meteorite impact ...