The Smithsonian Institution is currently showing off a visiting diamond, and the Foxfire Diamond is a weird gem because it changes into more than one color when the lights change, not to mention the ...

The Hope Diamond intrigues people with its beautiful blue color, its mysterious curse, and its sheer size. But did you know it glows “like a coal on a barbecue grill” for several minutes after it has ...

WASHINGTON -- The famed Hope Diamond glows a mysterious red when exposed to ultraviolet light, a finding that scientists say can help them "fingerprint" blue diamonds and tell the real ones from the ...

The blood red glow given off by a diamond that is supposedly cursed has yielded up its secrets at last. The famed Hope Diamond is a 45.52-carat, deep-blue diamond that sits in the Smithsonian ...