Internal Graining Diamond Inclusion Photography
Internal Graining (IntGr) inclusions are caused by irregular crystal growth which creates internal distortions, waviness, or haze.
Internal Graining: regions of irregular crystal growth that may appear as milky or colored lines or streaks, or may be reflective.
Internal Graining: Internal indications of irregular crystal growth. May appear milky, like faint lines or streaks, or may be colored or reflective.
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Loupe: A magnifying glass usually of 10X used to examine diamonds.
Internal Graining
A gemstone which contains internal irregular crystal growth is known as internal graining. It may appear milky like faint lines or streaks.
Iridescent ...
internal graining
Irregularities in crystal growth may cause some lines or textures that appear like haze on the diamond surface.
grain center
Although not visible from every angle, grain center looks like a transparent tornado inside the diamond..
When these flaws / marks occur internally, they are called inclusions and the most common types of inclusions include Crystals, Tiny Bubbles representing small minerals that were absorbed into the diamond while it was growing, Internal Graining, ...
Typical flaws include tiny pinpoints, faint clouds, tiny feathers, or internal graining.
VS1, VS2 (very slightly included) - Very small inclusions and/or finish faults, somewhat difficult for a trained eye to see under 10x magnification.
It takes a professional Diamontologist or Gemologist to see the tiny characteristics, almost invisible traits like: Naturals, Internal Graining, Extra Facets, Polish Marks. and even then, they will have to scrutinize the stone very well.
 See also: Diamond, Grain, Feather, Crystal, Natural
  
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