Primary internal terminology and context source across 105 chapters.
HOK-DIA-TERM-229 · Optics
Lustre
A qualitative description of the appearance of light reflected from the surface of a mineral or gem. Diamond is traditionally described as having adamantine lustre.
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How this term is used on the platform
- Synonyms / variants
- luster
- Editorial note
- Do not use lustre as a substitute for brightness, fire, or scintillation without context.
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Sources and authorities
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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