A 10-carat blue diamond which could fetch $20 million when it goes under the hammer later this month was presented by auction ...

A rare 10-carat blue fancy diamond ... carats have consistently commanded high prices at auction. The transformation of the “Mediterranean Blue” diamond into a polished gem followed a year ...

What was first thought to be a candy wrapper turned into a diamond find for a Minnesota man visiting an Arkansas state park ...

Are expensive diamond rings always better? Discover how factors like cut, clarity, and carat weight impact quality, ...