Illustrated report for brilliant

Polished Brilliant
Brilliant
02.06.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 2.02, 2.0274
Measurements 8.145 (8.126-8.164) x 5.000 / 0.006 (mm)
Spread -0.03ct, -1.63 %
AGS Spread -0.04 ct, -1.77%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
8.126 mm 8.164 mm 1.005 8.126 mm 8.164 mm 8.145 mm 5.000 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.228 mm 3.494 mm 4.560 mm 0.028 mm 0.278 mm 0.277 mm 0.145 mm
Appraiser title Lexus_Opt_12FEB2011
Overall cut quality N/A
Symmetry appraiser title Symmetry
Overall symmetry quality VG
Final grade N/A
Model building info The model has small errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 8.145 8.126 8.164 0.47% GD EX
Radius, mm 4.071 4.059 4.085 0.026% – –
Crown angle, ° 34.45 34.24 34.72 0.48 EX EX
Pavilion angle, ° 40.72 40.66 40.79 0.13 EX EX
Total height, % 61.38 – – – EX –
Crown height, % 15.07 14.78 15.48 0.70 EX VG
Crown height bone, % 15.11 14.82 15.42 0.60 – –
Pavilion height, % 42.89 42.62 43.25 0.62 – –
Pavilion upperbone, % 42.87 42.46 43.26 0.80 – –
Table, % 55.99 55.81 56.21 0.40 EX EX
Culet, % 0.35 0.28 0.41 0.13 GD EX
Girdle height bezel, % 3.42 2.99 3.84 0.85 EX VG
Girdle height bone, % 3.40 3.20 3.54 0.34 – EX
Girdle height 1.78 1.41 2.03 0.63 N/A EX
valley, %
Star: 49.06: 48.51: 50.13: 1.62 EX EX
Upper ratio, % 50.94 51.49 49.87
Star angle, ° 21.53 21.21 21.92 0.71 – EX
Upper girdle 40.93 40.13 41.56 1.43 – VG
angle, °
Length girdle 76.79 76.33 77.86 1.53 EX EX
facet, %
Lower girdle angle / 41.89 41.79 42.02 0.23 – EX
Halves angle, °
Facet Twist, ° 0.23 0.01 0.57 0.56 – EX
Crown height, mm 1.228 1.203 1.261 0.057 EX VG
Pavilion height, mm 3.494 3.471 3.522 0.051 – –
Table, mm 4.560 4.546 4.578 0.032 EX EX
Culet, mm 0.028 0.023 0.033 0.010 GD EX
Girdle height bezel, mm 0.278 0.243 0.313 0.070 EX VG
Measurement as per OctoNus theory:
Crown angle, ° 34.45 34.36 34.57 0.21 – –
Pavilion angle, ° 40.72 40.70 40.73 0.03 – –
Fish eye effect, ° 8.43 – – – N/A –
Culet through Crown Bezel, ° 9.74 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.01 0.03 0.01 -0.03 0.46 -0.20 -0.18 -0.11
Crown azimuths dev. from ideal -0.22 -0.16 0.01 -0.05 -0.10 0.29 -0.10 -0.32
Crown painting -0.96 -0.65 -0.11 -1.26 -0.07 -0.34 0.55 -0.29
0.06 0.22 -0.23 0.43 -0.48 1.30 -0.38 0.39
Pavilion painting -0.19 0.26 -0.12 0.23 -0.38 0.06 -0.04 -0.64
0.34 0.11 -0.12 0.06 -0.02 0.17 0.05 -0.05
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.37 ± 0.18 % 0.030 ± 0.015 mm N/A
Girdle-Table offset by table axis 0.53 ± 0.15 % 0.043 ± 0.013 mm N/A
Table-Culet offset by table axis 0.79 ± 0.19 % 0.064 ± 0.016 mm N/A
Girdle to table-culet line offset 0.79 % 0.064 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 8.160 8.137 8.131 8.164 – – – –
Radius, mm 4.081 4.074 4.066 4.081 4.077 4.063 4.065 4.083
Crown angle, ° 34.29 34.58 34.24 34.72 34.42 34.32 34.58 34.42
Pavilion angle, ° 40.66 40.74 40.79 40.77 40.76 40.67 40.67 40.69
Total height, % – – – – – – – –
Crown height, % 15.37 15.27 14.83 15.01 14.84 14.78 15.02 15.48
Crown height bone, % 15.41 15.25 14.96 14.93 14.82 14.97 15.14 15.42
Pavilion height, % 42.68 42.62 42.71 43.03 43.25 43.04 42.91 42.92
Pavilion upperbone, % 42.46 42.66 42.88 43.12 43.26 43.03 42.82 42.76
Table, % 55.81 56.02 56.21 55.92 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.34 3.49 3.84 3.34 3.30 3.57 3.46 2.99
Girdle height bone, % 3.52 3.47 3.54 3.34 3.30 3.38 3.42 3.20
Girdle height 1.84 2.03 1.79 2.01 1.97 1.84 1.78 1.67
valley, % 1.61 1.84 1.87 1.70 1.83 1.58 1.41 1.72
Star: 49.06: 49.24: 48.84: 48.52: 50.13: 48.51: 48.85: 49.38:
Upper ratio, % 50.94 50.76 51.16 51.48 49.87 51.49 51.15 50.62
Star angle, ° 21.72 21.29 21.73 21.43 21.40 21.57 21.92 21.21
Upper girdle 41.18 41.30 41.13 41.56 40.71 41.10 41.07 41.27
angle, ° 40.78 40.78 40.83 40.91 41.07 40.13 40.81 40.30
Length girdle 76.81 76.60 76.59 76.50 77.05 76.33 76.54 76.43
facet, % 77.24 77.11 76.38 76.81 77.86 77.25 76.66 76.39
Lower girdle angle / 41.90 41.86 41.98 42.02 41.96 41.93 41.98 42.00
Halves angle, ° 41.91 41.79 41.84 41.85 41.79 41.80 41.87 41.84
Facet Twist, ° 0.23 0.20 0.01 0.03 0.57 0.48 0.07 0.22
Crown height, mm 1.252 1.244 1.208 1.223 1.209 1.203 1.223 1.261
Pavilion height, mm 3.476 3.471 3.479 3.504 3.522 3.505 3.495 3.496
Table, mm 4.546 4.562 4.578 4.555 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.272 0.285 0.313 0.272 0.268 0.291 0.282 0.243
 
Measurement as per OctoNus theory:
Crown angle, ° 34.36 34.45 34.41 34.57 – – – –
Pavilion angle, ° 40.71 40.70 40.73 40.73 – – – –
MIC, mm 8.120 Extra Facet Crown No –
Girdle to MIC, mm 0.006 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.11 N/A 1.30 EX
Crown,notch. 0.0, Negligible 0.3
Pavilion, ° -0.02 N/A -0.64 EX
Pavilion,notch. 0.0, Negligible 0.2