Illustrated report for brilliant

Polished Brilliant
Brilliant
13.10.2025
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 2.56, 2.5654
Measurements 8.820 (8.808-8.838) x 5.364 / 0.004 (mm)
Spread -0.03ct, -1.26 %
AGS Spread -0.04 ct, -1.41%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
8.808 mm 8.838 mm 1.003 8.808 mm 8.838 mm 8.820 mm 5.364 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.277 mm 3.779 mm 5.072 mm 0.028 mm 0.309 mm 0.350 mm 0.185 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 medium errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 8.820 8.808 8.838 0.35% GD EX
Radius, mm 4.408 4.401 4.420 0.019% – –
Crown angle, ° 34.40 34.12 34.59 0.48 EX EX
Pavilion angle, ° 40.68 40.55 40.88 0.33 EX EX
Total height, % 60.82 – – – EX –
Crown height, % 14.47 14.36 14.62 0.26 EX EX
Crown height bone, % 14.01 13.61 14.36 0.75 – –
Pavilion height, % 42.84 42.66 43.04 0.38 – –
Pavilion upperbone, % 42.84 42.70 43.13 0.44 – –
Table, % 57.51 57.37 57.61 0.24 EX EX
Culet, % 0.32 0.24 0.39 0.15 GD EX
Girdle height bezel, % 3.50 3.30 3.80 0.50 EX EX
Girdle height bone, % 3.96 3.67 4.27 0.61 – EX
Girdle height 2.09 1.63 2.41 0.78 N/A EX
valley, %
Star: 49.65: 48.22: 50.40: 2.18 EX VG
Upper ratio, % 50.35 51.78 49.60
Star angle, ° 20.76 20.50 21.32 0.83 – EX
Upper girdle 39.92 38.70 40.78 2.08 – VG
angle, °
Length girdle 75.35 74.48 76.42 1.94 -- EX
facet, %
Lower girdle angle / 41.92 41.70 42.19 0.49 – EX
Halves angle, °
Facet Twist, ° 0.32 0.19 0.47 0.28 – EX
Crown height, mm 1.277 1.266 1.290 0.023 EX EX
Pavilion height, mm 3.779 3.763 3.796 0.034 – –
Table, mm 5.072 5.059 5.081 0.021 EX EX
Culet, mm 0.028 0.021 0.034 0.013 GD EX
Girdle height bezel, mm 0.309 0.291 0.335 0.044 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.40 34.31 34.53 0.22 – –
Pavilion angle, ° 40.68 40.62 40.76 0.15 – –
Fish eye effect, ° 7.40 – – – N/A –
Culet through Crown Bezel, ° 11.87 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.09 0.03 0.24 -0.14 -0.03 -0.29 -0.62 0.00
Crown azimuths dev. from ideal -0.40 -0.33 -0.12 -0.29 -0.23 0.21 -0.30 -0.23
Crown painting 1.60 3.02 1.83 2.27 0.46 1.04 -0.07 0.59
0.85 2.65 1.38 0.93 1.20 1.07 4.01 3.69
Pavilion painting 0.24 0.27 0.34 -0.52 0.35 -0.66 -0.33 0.15
-0.39 0.26 -0.13 0.39 -0.73 -0.31 0.35 -0.19
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.34 ± 0.17 % 0.030 ± 0.015 mm N/A
Girdle-Table offset by table axis 0.27 ± 0.14 % 0.024 ± 0.013 mm N/A
Table-Culet offset by table axis 0.52 ± 0.18 % 0.046 ± 0.016 mm N/A
Girdle to table-culet line offset 0.52 % 0.046 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 8.818 8.820 8.826 8.816 – – – –
Radius, mm 4.407 4.411 4.413 4.408 4.410 4.408 4.413 4.409
Crown angle, ° 34.51 34.47 34.34 34.47 34.12 34.33 34.39 34.59
Pavilion angle, ° 40.64 40.55 40.71 40.75 40.88 40.68 40.63 40.63
Total height, % – – – – – – – –
Crown height, % 14.46 14.41 14.36 14.36 14.41 14.58 14.62 14.60
Crown height bone, % 13.78 13.76 14.10 14.31 13.87 14.36 14.28 13.61
Pavilion height, % 43.04 42.85 42.86 42.66 42.89 42.70 42.83 42.92
Pavilion upperbone, % 42.81 42.78 42.92 42.79 42.70 42.79 42.82 43.13
Table, % 57.37 57.58 57.50 57.61 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.31 3.56 3.60 3.80 3.52 3.54 3.37 3.30
Girdle height bone, % 4.23 4.27 3.80 3.72 4.25 3.67 3.72 4.07
Girdle height 2.08 2.41 2.37 2.17 2.15 1.97 2.24 1.73
valley, % 2.27 2.39 1.94 1.63 2.03 2.01 2.01 2.07
Star: 49.82: 48.22: 49.82: 49.81: 50.40: 49.24: 50.05: 49.83:
Upper ratio, % 50.18 51.78 50.18 50.19 49.60 50.76 49.95 50.17
Star angle, ° 20.60 20.70 20.56 20.50 20.71 20.63 21.32 21.05
Upper girdle 39.80 39.37 39.65 39.52 40.55 40.70 40.78 40.73
angle, ° 39.76 39.28 40.12 40.28 40.23 40.42 38.70 38.85
Length girdle 74.83 74.87 75.28 74.93 75.64 76.22 75.99 76.26
facet, % 75.78 76.42 74.48 74.81 75.43 74.70 74.61 75.33
Lower girdle angle / 41.82 41.70 41.75 41.88 42.02 42.10 42.00 42.19
Halves angle, ° 41.98 41.83 41.94 41.95 41.82 41.78 41.93 41.97
Facet Twist, ° 0.34 0.39 0.40 0.19 0.23 0.47 0.29 0.27
Crown height, mm 1.275 1.271 1.266 1.266 1.271 1.286 1.290 1.288
Pavilion height, mm 3.796 3.779 3.780 3.763 3.782 3.766 3.777 3.785
Table, mm 5.059 5.078 5.072 5.081 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.292 0.314 0.318 0.335 0.311 0.312 0.297 0.291
 
Measurement as per OctoNus theory:
Crown angle, ° 34.31 34.40 34.37 34.53 – – – –
Pavilion angle, ° 40.76 40.62 40.67 40.69 – – – –
MIC, mm 8.804 Extra Facet Crown No –
Girdle to MIC, mm 0.004 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 1.66 Painting N/A 4.01 EX
Crown,notch. 0.4, Small 1.1
Pavilion, ° -0.06 N/A -0.73 EX
Pavilion,notch. 0.0, Negligible 0.2