Posted this in RockyTakly but looking around maybe it more appropriately belongs here, although don't know if anyone reads over here!
I have read all the discussion I can find on HCA scores < 1 and understand well that they can be nice performers or can be subject to excessive obstruction to direct light return at close range, and much depends on symmetry. Some places it's been suggested that an AGS 0 grade negates any concern of this possibility in a stone scoring under 1 on HCA.
Seeking opinions on whether an AGS 000 with light performance score 0 weeds out the stones with HCA < 1 that would be subject to excessive darkening at close range.
As always, thanks to anyone willing to weigh in!
I have read all the discussion I can find on HCA scores < 1 and understand well that they can be nice performers or can be subject to excessive obstruction to direct light return at close range, and much depends on symmetry. Some places it's been suggested that an AGS 0 grade negates any concern of this possibility in a stone scoring under 1 on HCA.
Seeking opinions on whether an AGS 000 with light performance score 0 weeds out the stones with HCA < 1 that would be subject to excessive darkening at close range.
As always, thanks to anyone willing to weigh in!
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