SAPPHIRE INCLUSIONS?

[Mickey Bourbon]

I recently purchased a large blue sapphire. Looking at the stone under a jewelers loupe I noticed some silk but also a very thin dark lattice of very dark blue. It is almost unperceptible. What could this lattice represent, these are very thin lines crossing each other at an angle.

 

[Cerulean]

OP - suggest you report your post to see if you can get this moved to the Colored Gemstones forum - this will get more traffic there!