Illustrated report for brilliant

Polished Brilliant
Brilliant
05.12.2025
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.72, 1.7244
Measurements 7.679 (7.657-7.695) x 4.748 / 0.003 (mm)
Spread -0.05ct, -3.14 %
AGS Spread -0.05 ct, -3.28%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
7.657 mm 7.695 mm 1.005 7.657 mm 7.695 mm 7.679 mm 4.748 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.153 mm 3.304 mm 4.356 mm 0.029 mm 0.292 mm 0.273 mm 0.151 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 big errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 7.679 7.657 7.695 0.49% GD EX
Radius, mm 3.838 3.821 3.851 0.030% – –
Crown angle, ° 34.72 34.47 34.98 0.51 EX EX
Pavilion angle, ° 40.84 40.74 40.98 0.24 EX EX
Total height, % 61.83 – – – VG –
Crown height, % 15.01 14.87 15.15 0.28 EX EX
Crown height bone, % 15.29 15.04 15.52 0.48 – –
Pavilion height, % 43.02 42.80 43.24 0.44 – –
Pavilion upperbone, % 42.99 42.84 43.18 0.34 – –
Table, % 56.72 56.64 56.80 0.16 EX EX
Culet, % 0.38 0.31 0.45 0.14 GD EX
Girdle height bezel, % 3.80 3.57 4.04 0.47 EX EX
Girdle height bone, % 3.55 3.29 3.75 0.46 – EX
Girdle height 1.97 1.63 2.40 0.77 N/A EX
valley, %
Star: 47.57: 46.28: 48.56: 2.28 EX VG
Upper ratio, % 52.43 53.72 51.44
Star angle, ° 21.19 20.38 21.56 1.18 – EX
Upper girdle 41.69 41.18 42.28 1.10 – VG
angle, °
Length girdle 77.44 76.23 78.52 2.29 EX EX
facet, %
Lower girdle angle / 41.99 41.86 42.17 0.31 – EX
Halves angle, °
Facet Twist, ° 0.39 0.15 0.82 0.67 – EX
Crown height, mm 1.153 1.142 1.163 0.021 EX EX
Pavilion height, mm 3.304 3.287 3.320 0.034 – –
Table, mm 4.356 4.350 4.362 0.012 EX EX
Culet, mm 0.029 0.024 0.035 0.011 GD EX
Girdle height bezel, mm 0.292 0.274 0.310 0.036 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.72 34.54 34.82 0.29 – –
Pavilion angle, ° 40.84 40.79 40.90 0.11 – –
Fish eye effect, ° 8.48 – – – N/A –
Culet through Crown Bezel, ° 9.61 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.19 0.17 -0.33 -0.76 -0.02 0.02 -0.19 0.11
Crown azimuths dev. from ideal 0.65 0.33 -0.07 0.07 0.15 0.39 0.56 -0.09
Crown painting -0.02 -0.46 -0.48 -0.32 -0.97 -1.62 -0.34 -0.22
-1.31 -1.55 -0.64 -1.01 -0.87 -1.41 -1.47 -3.05
Pavilion painting 0.30 -0.28 0.24 0.32 -0.45 1.21 -0.90 0.20
-0.32 0.12 -0.21 0.55 -0.57 -0.08 -0.08 -0.25
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.12 ± 0.19 % 0.009 ± 0.014 mm N/A
Girdle-Table offset by table axis 0.28 ± 0.16 % 0.022 ± 0.013 mm N/A
Table-Culet offset by table axis 0.17 ± 0.20 % 0.013 ± 0.016 mm N/A
Girdle to table-culet line offset 0.17 % 0.013 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 7.687 7.685 7.681 7.678 – – – –
Radius, mm 3.849 3.841 3.838 3.843 3.838 3.843 3.843 3.833
Crown angle, ° 34.60 34.98 34.85 34.91 34.47 34.67 34.73 34.56
Pavilion angle, ° 40.88 40.92 40.80 40.98 40.80 40.74 40.77 40.82
Total height, % – – – – – – – –
Crown height, % 14.87 15.00 14.99 15.03 14.98 15.11 15.15 14.95
Crown height bone, % 15.04 15.23 15.31 15.15 15.39 15.40 15.52 15.27
Pavilion height, % 43.14 43.08 42.80 43.24 43.00 43.03 43.01 42.91
Pavilion upperbone, % 43.04 42.97 42.91 43.18 42.98 42.99 43.02 42.84
Table, % 56.64 56.80 56.69 56.73 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.82 3.76 4.04 3.57 3.85 3.70 3.67 3.98
Girdle height bone, % 3.75 3.64 3.61 3.50 3.46 3.44 3.29 3.72
Girdle height 2.11 2.01 1.92 2.07 2.40 1.97 1.80 1.94
valley, % 2.18 1.90 1.88 1.69 1.93 1.63 2.26 1.84
Star: 46.28: 46.53: 47.49: 48.31: 48.13: 48.56: 47.63: 47.64:
Upper ratio, % 53.72 53.47 52.51 51.69 51.87 51.44 52.37 52.36
Star angle, ° 21.42 21.18 21.25 21.20 20.97 21.56 21.53 20.38
Upper girdle 41.18 41.38 41.71 41.60 41.63 42.08 41.69 41.37
angle, ° 41.45 41.56 41.93 41.83 41.62 41.82 41.94 42.28
Length girdle 78.28 78.52 77.82 78.36 77.76 76.48 77.59 77.32
facet, % 76.53 76.23 76.98 77.10 77.28 77.14 77.67 77.99
Lower girdle angle / 41.98 42.04 42.06 41.97 41.87 42.06 42.17 42.09
Halves angle, ° 41.86 41.89 41.98 41.94 41.94 41.99 41.97 42.02
Facet Twist, ° 0.45 0.15 0.25 0.82 0.15 0.36 0.74 0.20
Crown height, mm 1.142 1.152 1.151 1.154 1.150 1.160 1.163 1.148
Pavilion height, mm 3.313 3.308 3.287 3.320 3.302 3.304 3.303 3.295
Table, mm 4.350 4.362 4.354 4.356 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.293 0.289 0.310 0.274 0.296 0.284 0.282 0.306
 
Measurement as per OctoNus theory:
Crown angle, ° 34.54 34.82 34.79 34.74 – – – –
Pavilion angle, ° 40.84 40.83 40.79 40.90 – – – –
MIC, mm 7.655 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, ° -0.98 Digging N/A -3.05 EX
Crown,notch. 0.3, Very small 0.8
Pavilion, ° -0.01 N/A 1.21 EX
Pavilion,notch. 0.0, Negligible 0.3