An international team led by researchers from the University of Cologne has solved the mystery of an extraordinary phenomenon ...

Unsure about the authenticity of your diamond? Learn how to perform 5 easy, non-destructive tests at home using simple items ...

Empress Zita of Bourbon-Parma wanted the jewel's location to be kept secret for 100 years after the death of her husband, ...

Lab frown diamonds look identical to natural ones, but with the right cues and clarity checks, you can learn exactly how to ...