Primary internal terminology and context source across 105 chapters.
HOK-DIA-TERM-336 · 4Cs and grading
Slightly Included
The GIA clarity group comprising SI1 and SI2, with inclusions noticeable at 10× magnification under the laboratory's criteria.
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- Synonyms / variants
- SI · SI1 · SI2
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The records below form the terminology basis for this entry or its category. This does not mean that every source defines every word on this page. The canonical manuscript remains the primary contextual source, while each external standard, laboratory policy, or regulatory guideline applies only within its own scope.
Widely used definitions for color, clarity, cut, carat and optical appearance terms.
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