kenny|1372287553|3472854 said:A diamond in the sun, or under flash gives off many facets that vary from very dark to very bright.
The brightness range exceeds what the human retina and any camera can capture.
It's not the diamond.
It is the light pick-up device.
The iris in the human eye and the aperture in the camera's lens closes down to a small hole because the sun or flash makes the bright parts of the diamond TOO bright.
The eye, and the camera attempt to block the excessive brightness.
This pushes the less-bright parts of the diamond down into dark shadow.
angeleyes|1372344936|3473169 said:
kenny|1372287553|3472854 said:The iris in the human eye and the aperture in the camera's lens closes down to a small hole because the sun or flash makes the bright parts of the diamond TOO bright.