Quote:
Originally Posted by dr325i
Makes sense now...
But look at my post/experience...SI inclusion can possibly grow (faster than the VS trace of impurity)...
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Well technically a feather is a chip or fissure in the stone, and you are absolutely correct - they can and will grow. A fissure will grow at least, a chip shouldn't change. These shouldn't be counted in the clarity grading of the stone, but their location should be marked and noted on the GIA or other certification.
Technically, an inclusion is a mineral or uncompressed carbon in the stone. These shouldn't crack or lead to a crack or feather in the stone once it has been faceted. If the stone were going to fracture on a major inclusion, it would do so during mining or faceting.