Animal Spotting in Diamonds - a GIA Find

The Gemological Institute of America (GIA) recently discovered feather inclusions in two natural diamonds: 1.55 ct round with G-color and I1 clarity and a 0.30 ct round with F-color and VS2 clarity.

There appeared to be a swarm of butterflies in one of the diamonds or a kaleidoscope. A feather broke through the pavilion surface, which could be observed face-up through the crown. Mirror and prism created images that looked like a white butterfly. 

A small feather in the other diamond had a mirror reflection, which made it resemble a tiny fish swimming in the sun. Although feathers are found a lot in diamonds, it is unusual that such interesting shapes can be observed.

Photo credits: GIA