Is this anything to worry about - graining?

[pyramid]

On one of the star facets and the top of one of the kite facets there is a grain line, below this inside the diamond I can see reflective internal graining. This is looking with a loupe and is confined to part of the star facet. Is this anything to worry about?

 

[DiamondOptics]

Internal grain orientation, may be something you want to take up with an independent appraiser. I do not know if this would pose any real problems, but its something to
consider while making a purchase.

Kirk Konst

 

[pyramid]

Thank you for your reply. Internal grain orientation - is this not something the cutter should have dealt with before the stone was sold?