Illustrated report for brilliant

Polished Brilliant
Brilliant
21.01.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.08, 1.0870
Measurements 6.623 (6.610-6.633) x 4.039 / 0.001 (mm)
Spread -0.01ct, -1.39 %
AGS Spread -0.02 ct, -1.53%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
6.610 mm 6.633 mm 1.003 6.610 mm 6.633 mm 6.623 mm 4.039 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
0.962 mm 2.842 mm 3.806 mm 0.027 mm 0.235 mm 0.224 mm 0.121 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 6.623 6.610 6.633 0.34% GD EX
Radius, mm 3.310 3.304 3.318 0.014% – –
Crown angle, ° 34.34 34.28 34.47 0.19 EX EX
Pavilion angle, ° 40.76 40.66 40.88 0.22 EX EX
Total height, % 61.00 – – – EX –
Crown height, % 14.52 14.37 14.60 0.24 EX EX
Crown height bone, % 14.65 14.42 14.83 0.41 – –
Pavilion height, % 42.92 42.63 43.27 0.65 – –
Pavilion upperbone, % 42.95 42.61 43.31 0.70 – –
Table, % 57.47 57.29 57.63 0.35 EX EX
Culet, % 0.41 0.31 0.46 0.15 GD EX
Girdle height bezel, % 3.55 3.26 3.80 0.55 EX EX
Girdle height bone, % 3.39 3.12 3.56 0.44 – EX
Girdle height 1.83 1.37 2.15 0.78 N/A EX
valley, %
Star: 47.23: 46.63: 47.80: 1.17 EX EX
Upper ratio, % 52.77 53.37 52.20
Star angle, ° 20.43 19.97 20.84 0.87 – EX
Upper girdle 40.94 40.47 41.34 0.87 – EX
angle, °
Length girdle 75.29 74.01 76.66 2.66 -- EX
facet, %
Lower girdle angle / 42.01 41.83 42.30 0.47 – EX
Halves angle, °
Facet Twist, ° 0.34 0.04 0.77 0.73 – EX
Crown height, mm 0.962 0.951 0.967 0.016 EX EX
Pavilion height, mm 2.842 2.823 2.866 0.043 – –
Table, mm 3.806 3.794 3.817 0.023 EX EX
Culet, mm 0.027 0.021 0.031 0.010 GD EX
Girdle height bezel, mm 0.235 0.216 0.252 0.036 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.34 34.31 34.38 0.07 – –
Pavilion angle, ° 40.76 40.72 40.80 0.08 – –
Fish eye effect, ° 7.77 – – – N/A –
Culet through Crown Bezel, ° 11.76 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.43 0.01 -0.05 -0.72 -0.12 -0.84 0.42 0.05
Crown azimuths dev. from ideal 0.11 0.00 0.25 0.08 0.09 -0.55 0.12 -0.46
Crown painting -0.43 0.79 -1.14 -1.01 -0.23 0.03 -0.28 -1.10
-0.37 -0.78 0.29 0.23 -0.67 -0.12 -0.16 -0.54
Pavilion painting 0.33 0.12 0.16 -0.53 0.25 0.99 -0.37 -0.78
0.18 1.14 -0.88 -0.56 0.83 -0.45 -0.60 -0.66
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.15 ± 0.21 % 0.010 ± 0.014 mm N/A
Girdle-Table offset by table axis 0.04 ± 0.19 % 0.003 ± 0.012 mm N/A
Table-Culet offset by table axis 0.19 ± 0.23 % 0.013 ± 0.015 mm N/A
Girdle to table-culet line offset 0.19 % 0.013 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 6.626 6.620 6.629 6.613 – – – –
Radius, mm 3.314 3.309 3.313 3.306 3.312 3.310 3.315 3.307
Crown angle, ° 34.28 34.29 34.31 34.33 34.36 34.47 34.31 34.41
Pavilion angle, ° 40.88 40.75 40.70 40.84 40.66 40.70 40.82 40.76
Total height, % – – – – – – – –
Crown height, % 14.47 14.37 14.54 14.52 14.57 14.58 14.60 14.56
Crown height bone, % 14.42 14.65 14.68 14.73 14.83 14.54 14.82 14.57
Pavilion height, % 43.27 42.98 42.81 42.84 42.63 42.80 43.11 42.93
Pavilion upperbone, % 43.12 42.89 42.86 42.80 42.61 43.06 42.99 43.31
Table, % 57.52 57.63 57.45 57.29 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.26 3.65 3.65 3.64 3.80 3.62 3.28 3.51
Girdle height bone, % 3.45 3.46 3.45 3.47 3.56 3.40 3.18 3.12
Girdle height 1.71 1.84 2.03 1.90 1.68 1.87 2.15 1.91
valley, % 2.08 1.98 1.86 1.71 1.74 1.62 1.78 1.37
Star: 47.29: 47.47: 47.80: 46.81: 46.66: 47.45: 46.63: 47.76:
Upper ratio, % 52.71 52.53 52.20 53.19 53.34 52.55 53.37 52.24
Star angle, ° 20.51 20.25 20.75 19.97 20.84 20.33 20.66 20.15
Upper girdle 40.75 40.47 41.07 41.22 41.05 40.88 40.60 41.13
angle, ° 41.34 41.20 40.70 40.69 40.95 41.01 40.77 41.20
Length girdle 74.01 75.49 74.62 75.05 74.12 74.29 75.63 76.42
facet, % 75.24 75.39 76.59 75.89 75.93 76.66 74.52 74.72
Lower girdle angle / 42.10 42.03 41.96 41.94 42.07 42.10 41.96 41.96
Halves angle, ° 41.86 41.83 41.98 42.08 41.90 41.94 42.16 42.30
Facet Twist, ° 0.35 0.04 0.26 0.77 0.18 0.26 0.33 0.54
Crown height, mm 0.958 0.951 0.963 0.961 0.965 0.965 0.967 0.964
Pavilion height, mm 2.866 2.846 2.835 2.837 2.823 2.834 2.855 2.843
Table, mm 3.809 3.817 3.804 3.794 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.216 0.242 0.242 0.241 0.252 0.240 0.217 0.232
 
Measurement as per OctoNus theory:
Crown angle, ° 34.32 34.38 34.31 34.37 – – – –
Pavilion angle, ° 40.77 40.72 40.76 40.80 – – – –
MIC, mm 6.609 Extra Facet Crown No –
Girdle to MIC, mm 0.001 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.34 N/A -1.14 EX
Crown,notch. 0.1, Negligible 0.3
Pavilion, ° -0.05 N/A 1.14 EX
Pavilion,notch. 0.0, Negligible 0.3