OPTICA
·
Light Return Analysis
4 / 12
A quarter-degree costs a third of your light
100%
75%
50%
25%
0%
42%
58%
84%
96%
78%
61%
39.0°
39.5°
40.0°
40.75°
41.5°
42.0°
PAVILION ANGLE
LIGHT RETURN
Source: Lucent Cut Grade Research, 2024
OPTICA § 4
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