Illustrated report for brilliant

Polished Brilliant
Brilliant
27.03.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.57, 1.5724
Measurements 7.441 (7.415-7.468) x 4.598 / 0.002 (mm)
Spread -0.05ct, -3.37 %
AGS Spread -0.05 ct, -3.52%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
7.415 mm 7.468 mm 1.007 7.415 mm 7.468 mm 7.441 mm 4.598 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.110 mm 3.198 mm 4.237 mm 0.021 mm 0.290 mm 0.275 mm 0.156 mm
Appraiser title Lexus_Opt_12FEB2011
Overall cut quality --
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 7.441 7.415 7.468 0.71% -- VG
Radius, mm 3.719 3.706 3.736 0.029% – –
Crown angle, ° 34.73 34.51 35.10 0.59 EX EX
Pavilion angle, ° 40.78 40.56 40.94 0.38 EX EX
Total height, % 61.79 – – – VG –
Crown height, % 14.91 14.78 15.11 0.33 EX EX
Crown height bone, % 15.13 14.96 15.40 0.44 – –
Pavilion height, % 42.98 42.63 43.25 0.62 – –
Pavilion upperbone, % 42.97 42.73 43.28 0.55 – –
Table, % 56.94 56.71 57.05 0.34 EX EX
Culet, % 0.28 0.23 0.35 0.12 VG EX
Girdle height bezel, % 3.90 3.58 4.28 0.70 EX VG
Girdle height bone, % 3.70 3.42 3.90 0.48 – EX
Girdle height 2.10 1.74 2.58 0.84 N/A EX
valley, %
Star: 47.46: 46.62: 48.31: 1.69 EX EX
Upper ratio, % 52.54 53.38 51.69
Star angle, ° 20.94 20.50 21.40 0.90 – EX
Upper girdle 41.53 40.22 42.59 2.37 – VG
angle, °
Length girdle 76.10 74.88 77.09 2.20 -- EX
facet, %
Lower girdle angle / 41.98 41.69 42.16 0.47 – EX
Halves angle, °
Facet Twist, ° 0.32 0.02 0.65 0.63 – EX
Crown height, mm 1.110 1.100 1.124 0.024 EX EX
Pavilion height, mm 3.198 3.172 3.218 0.046 – –
Table, mm 4.237 4.220 4.245 0.025 EX EX
Culet, mm 0.021 0.017 0.026 0.009 VG EX
Girdle height bezel, mm 0.290 0.266 0.319 0.052 EX VG
Measurement as per OctoNus theory:
Crown angle, ° 34.73 34.55 34.93 0.38 – –
Pavilion angle, ° 40.78 40.72 40.88 0.15 – –
Fish eye effect, ° 8.11 – – – N/A –
Culet through Crown Bezel, ° 9.88 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.27 0.10 0.04 -0.79 -0.18 -0.04 -0.24 -0.18
Crown azimuths dev. from ideal 0.39 -0.17 0.65 -0.05 0.47 0.29 -0.31 0.00
Crown painting 0.27 -0.73 -1.27 -0.80 -0.84 0.16 -1.38 -1.09
0.07 -1.43 0.77 1.63 -1.92 -0.71 -2.45 -1.29
Pavilion painting -0.19 0.50 -0.58 0.50 -0.28 1.10 -1.03 0.31
-0.36 0.30 -0.25 0.54 -0.63 0.64 -0.51 0.27
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.18 ± 0.19 % 0.013 ± 0.014 mm N/A
Girdle-Table offset by table axis 0.04 ± 0.17 % 0.003 ± 0.013 mm N/A
Table-Culet offset by table axis 0.19 ± 0.21 % 0.014 ± 0.015 mm N/A
Girdle to table-culet line offset 0.19 % 0.014 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 7.420 7.450 7.460 7.437 – – – –
Radius, mm 3.712 3.726 3.732 3.716 3.708 3.723 3.728 3.720
Crown angle, ° 34.76 34.51 34.51 34.73 35.10 34.87 34.59 34.74
Pavilion angle, ° 40.84 40.94 40.92 40.85 40.61 40.81 40.56 40.73
Total height, % – – – – – – – –
Crown height, % 15.11 14.78 14.79 14.98 14.88 15.01 14.95 14.79
Crown height bone, % 15.02 14.96 15.17 15.16 15.20 14.97 15.16 15.40
Pavilion height, % 42.83 43.14 43.25 43.05 42.63 43.20 42.86 42.89
Pavilion upperbone, % 42.88 43.16 43.20 42.78 42.94 43.28 42.77 42.73
Table, % 56.71 57.05 57.05 56.96 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.85 3.87 3.75 3.76 4.28 3.58 3.97 4.11
Girdle height bone, % 3.90 3.67 3.42 3.86 3.66 3.55 3.87 3.66
Girdle height 1.93 2.23 2.12 2.10 1.79 1.97 2.04 2.58
valley, % 2.15 2.00 1.74 1.98 2.46 2.38 2.14 1.94
Star: 48.31: 47.27: 47.83: 46.86: 47.63: 46.62: 47.04: 48.12:
Upper ratio, % 51.69 52.73 52.17 53.14 52.37 53.38 52.96 51.88
Star angle, ° 21.40 20.52 21.20 20.50 21.00 21.07 20.78 21.04
Upper girdle 41.14 41.44 41.55 41.22 41.44 41.25 41.84 41.71
angle, ° 41.83 41.86 40.92 40.22 41.62 41.48 42.59 42.34
Length girdle 75.62 76.35 75.81 76.33 77.09 76.72 76.19 76.06
facet, % 74.88 74.98 76.75 76.64 75.12 75.52 76.52 76.96
Lower girdle angle / 42.09 42.12 42.16 42.04 42.11 42.00 42.07 41.74
Halves angle, ° 41.94 41.93 42.10 41.87 41.69 41.84 42.03 41.93
Facet Twist, ° 0.02 0.36 0.51 0.65 0.55 0.23 0.16 0.09
Crown height, mm 1.124 1.100 1.101 1.115 1.107 1.117 1.113 1.101
Pavilion height, mm 3.187 3.210 3.218 3.203 3.172 3.215 3.190 3.192
Table, mm 4.220 4.245 4.245 4.239 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.287 0.288 0.279 0.280 0.319 0.266 0.296 0.306
 
Measurement as per OctoNus theory:
Crown angle, ° 34.93 34.69 34.55 34.74 – – – –
Pavilion angle, ° 40.72 40.88 40.74 40.79 – – – –
MIC, mm 7.413 Extra Facet Crown No –
Girdle to MIC, mm 0.002 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.69 Digging N/A -2.45 EX
Crown,notch. 0.2, Very small 0.7
Pavilion, ° 0.02 N/A 1.10 EX
Pavilion,notch. 0.0, Negligible 0.3