Illustrated report for brilliant

Polished Brilliant
Brilliant
25.04.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 3.35, 3.3525
Measurements 9.602 (9.584-9.615) x 5.883 / 0.003 (mm)
Spread -0.08ct, -2.53 %
AGS Spread -0.09 ct, -2.68%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
9.584 mm 9.615 mm 1.003 9.584 mm 9.615 mm 9.602 mm 5.883 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.381 mm 4.122 mm 5.503 mm 0.034 mm 0.380 mm 0.379 mm 0.228 mm
Appraiser title Lexus_Opt_12FEB2011
Overall cut quality N/A
Symmetry appraiser title Symmetry
Overall symmetry quality EX
Final grade N/A
Model building info The model has medium errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 9.602 9.584 9.615 0.32% GD EX
Radius, mm 4.799 4.787 4.809 0.021% – –
Crown angle, ° 33.99 33.86 34.16 0.29 EX EX
Pavilion angle, ° 40.74 40.62 40.90 0.28 EX EX
Total height, % 61.27 – – – EX –
Crown height, % 14.38 14.29 14.51 0.22 EX EX
Crown height bone, % 14.39 14.17 14.53 0.36 – –
Pavilion height, % 42.93 42.65 43.14 0.50 – –
Pavilion upperbone, % 42.93 42.66 43.11 0.45 – –
Table, % 57.31 57.06 57.48 0.42 EX EX
Culet, % 0.35 0.32 0.37 0.05 GD EX
Girdle height bezel, % 3.96 3.84 4.11 0.28 EX EX
Girdle height bone, % 3.95 3.80 4.10 0.30 – EX
Girdle height 2.37 2.05 2.65 0.60 N/A EX
valley, %
Star: 49.50: 48.93: 50.32: 1.39 EX EX
Upper ratio, % 50.50 51.07 49.68
Star angle, ° 20.72 20.46 21.02 0.57 – EX
Upper girdle 40.63 40.29 40.91 0.62 – EX
angle, °
Length girdle 78.10 77.32 79.17 1.85 EX EX
facet, %
Lower girdle angle / 41.88 41.71 42.06 0.35 – EX
Halves angle, °
Facet Twist, ° 0.52 0.09 0.86 0.77 – EX
Crown height, mm 1.381 1.372 1.393 0.021 EX EX
Pavilion height, mm 4.122 4.095 4.143 0.048 – –
Table, mm 5.503 5.479 5.519 0.040 EX EX
Culet, mm 0.034 0.031 0.035 0.005 GD EX
Girdle height bezel, mm 0.380 0.368 0.395 0.027 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 33.99 33.89 34.08 0.19 – –
Pavilion angle, ° 40.74 40.69 40.78 0.09 – –
Fish eye effect, ° 7.75 – – – N/A –
Culet through Crown Bezel, ° 11.91 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.26 0.21 0.27 0.22 0.00 0.19 -0.17 -0.28
Crown azimuths dev. from ideal -0.20 -0.37 -0.53 -0.66 -0.48 -0.21 0.31 0.27
Crown painting -0.89 0.41 -0.42 0.51 -0.40 0.48 -0.28 0.32
-0.35 0.68 -0.61 -0.05 0.25 -0.41 0.20 0.14
Pavilion painting -0.26 -0.18 -0.15 0.11 0.03 -0.25 0.34 -0.16
-0.09 -0.42 0.33 -0.35 -0.02 0.14 -0.21 0.30
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.43 ± 0.16 % 0.041 ± 0.015 mm N/A
Girdle-Table offset by table axis 0.11 ± 0.13 % 0.010 ± 0.013 mm N/A
Table-Culet offset by table axis 0.53 ± 0.17 % 0.051 ± 0.017 mm N/A
Girdle to table-culet line offset 0.53 % 0.051 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 9.603 9.613 9.610 9.604 – – – –
Radius, mm 4.803 4.804 4.806 4.797 4.799 4.807 4.805 4.807
Crown angle, ° 33.86 34.16 34.02 34.00 33.92 34.00 34.00 33.96
Pavilion angle, ° 40.87 40.69 40.65 40.62 40.68 40.70 40.81 40.90
Total height, % – – – – – – – –
Crown height, % 14.44 14.51 14.43 14.31 14.29 14.29 14.36 14.45
Crown height bone, % 14.53 14.43 14.45 14.32 14.17 14.29 14.43 14.51
Pavilion height, % 42.77 42.65 42.90 42.99 43.14 43.09 42.99 42.87
Pavilion upperbone, % 42.66 42.74 43.02 43.11 43.09 43.06 42.91 42.82
Table, % 57.06 57.48 57.43 57.28 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 4.06 4.11 3.93 3.96 3.84 3.89 3.92 3.95
Girdle height bone, % 4.08 4.10 3.80 3.84 4.00 3.92 3.92 3.94
Girdle height 2.51 2.65 2.54 2.51 2.24 2.24 2.27 2.05
valley, % 2.34 2.39 2.35 2.38 2.34 2.39 2.39 2.39
Star: 49.24: 49.67: 49.39: 49.76: 50.32: 48.93: 49.68: 49.01:
Upper ratio, % 50.76 50.33 50.61 50.24 49.68 51.07 50.32 50.99
Star angle, ° 20.73 21.02 20.96 20.62 20.48 20.46 20.68 20.83
Upper girdle 40.75 40.84 40.82 40.44 40.91 40.61 40.69 40.69
angle, ° 40.69 40.41 40.80 40.63 40.49 40.69 40.29 40.40
Length girdle 77.47 78.30 78.50 79.17 77.38 77.81 77.61 78.04
facet, % 77.32 77.59 78.29 78.75 78.13 78.47 78.36 78.36
Lower girdle angle / 42.00 41.89 41.82 41.71 41.80 41.76 41.74 41.83
Halves angle, ° 41.85 41.82 41.84 41.92 41.98 42.01 42.06 42.03
Facet Twist, ° 0.09 0.55 0.77 0.86 0.45 0.38 0.51 0.58
Crown height, mm 1.386 1.393 1.386 1.374 1.372 1.372 1.379 1.387
Pavilion height, mm 4.107 4.095 4.120 4.128 4.143 4.138 4.128 4.117
Table, mm 5.479 5.519 5.514 5.500 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.390 0.395 0.378 0.381 0.368 0.373 0.376 0.379
 
Measurement as per OctoNus theory:
Crown angle, ° 33.89 34.08 34.01 33.98 – – – –
Pavilion angle, ° 40.78 40.69 40.73 40.76 – – – –
MIC, mm 9.581 Extra Facet Crown No –
Girdle to MIC, mm 0.003 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.03 N/A -0.89 EX
Crown,notch. 0.0, Negligible 0.2
Pavilion, ° -0.05 N/A -0.42 EX
Pavilion,notch. 0.0, Negligible 0.1