The diamond in the movie has a flaw, which is what creates the illusion of a "pink panther." I'm curious though, could a flaw, that is, a bad cut, really create some kind of "image" inside the diamond. Or is it just something Blake Edwards made up.
"Andy! You goonie!"
here's the closest thing i've found online to an answer:
http://therapeuticpink.proboards102.com/index.cgi?board=general&action=display&thread=1161540584
Possibly. There are rare inclusions such as this:
"7. Included crystals or minerals: An included mineral or crystal is simply a mineral or crystal that has been trapped within the crystalline structure of the diamond. This is one of the more interesting of inclusions. The very nature of this inclusion indicates that you could have a tiny diamond, or other precious gem, included within your diamond, which may appear black, white or grey."