While it may look like a blazing red ruby, the 2.33-carat Winston Red Diamond is just that—a diamond. One of the rarest ...

If you gaze into the Winston Red Diamond long enough, it almost seems to burn. The 2.33-carat gem gleams a deep, saturated ...

An example is the old mine cut, which creates a squarish stone with rounded corners and a high crown (the top portion of the diamond), a style popular in the Georgian and Victorian eras.

Rodriguez has heard about how diamonds fuel distant conflicts, about the miserable conditions of the miners who wrest the stones from the earth, and he worries. The 34-year-old slips on a gold ...

It's an old-mine cushion cut. GUEST ... I just had to let you know about the diamond. GUEST: Well, I'm glad you did. That made my day. (laughing) My year. APPRAISER: Yeah, but thanks for coming.