Primary internal terminology and context source across 105 chapters.
HOK-DIA-TERM-038 · Optics
Brightness
The perception of white light returned to the observer from a diamond, including internal and external reflections according to the definition of the system being used.
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TERM USAGE
How this term is used on the platform
- Synonyms / variants
- white-light return
- Discouraged
- brilliance as an automatic synonym without definition
- Editorial note
- For technical consistency, the Book prefers “brightness” when referring to the specific GIA appearance component.
RELATED TERMS
Terminology network
FULL CONTEXT
Related chapters of The Book
TERMINOLOGY BASIS
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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