The idea of scintillation had been thought of as alternating flashes of contrasting dark and brightness produced by facets, caused in turn by the viewer’s movement, the diamond or the illuminating source.For some experts, defining and measuring scintillation cannot be done accurately, claiming that observations are always personal assessments.Others would define it as a contrast for brilliant white or fiery colored sparkles that appear brighter to the human eye. “Sparkly” things always catch and attract attention.
One expert defines two kinds of scintillation. Static scintillation is “the amount and the placement of darkness in a diamond seen … [face-up view] in a jewelry store environment from a distance of 16 inches.” Dynamic scintillation “is the sparkle effect [one sees] when [any one of the] diamond, the light or the observer moves.”
Generally, scintillation is the total effect when small flashes of light are seen when the diamond, the light source or the viewer is moved. Consequently, a diamond that is cut and polished that gives off a high level of this quality is considered high in light performance.There is a common assumption that diamonds with additional facets are more scintillating.
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