Illustrated report for brilliant

Polished Brilliant
Brilliant
25.04.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.08, 1.0828
Measurements 6.631 (6.612-6.644) x 4.020 / 0.002 (mm)
Spread -0.01ct, -0.60 %
AGS Spread -0.01 ct, -0.73%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
6.612 mm 6.644 mm 1.005 6.612 mm 6.644 mm 6.631 mm 4.020 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
0.958 mm 2.838 mm 3.795 mm 0.042 mm 0.224 mm 0.249 mm 0.131 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 6.631 6.612 6.644 0.49% GD EX
Radius, mm 3.314 3.302 3.326 0.024% – –
Crown angle, ° 34.17 33.93 34.38 0.45 EX EX
Pavilion angle, ° 40.75 40.65 40.85 0.20 EX EX
Total height, % 60.62 – – – EX –
Crown height, % 14.44 14.28 14.64 0.36 EX EX
Crown height bone, % 13.98 13.81 14.38 0.58 – –
Pavilion height, % 42.80 42.55 43.00 0.45 – –
Pavilion upperbone, % 42.89 42.60 43.08 0.49 – –
Table, % 57.23 57.16 57.37 0.21 EX EX
Culet, % 0.64 0.55 0.68 0.13 FR EX
Girdle height bezel, % 3.38 3.12 3.58 0.47 EX EX
Girdle height bone, % 3.75 3.52 4.08 0.56 – EX
Girdle height 1.97 1.73 2.24 0.51 N/A EX
valley, %
Star: 50.85: 50.27: 51.25: 0.97 EX EX
Upper ratio, % 49.15 49.73 48.75
Star angle, ° 21.03 20.67 21.54 0.87 – EX
Upper girdle 39.69 39.16 40.71 1.55 – VG
angle, °
Length girdle 77.59 76.82 78.59 1.77 EX EX
facet, %
Lower girdle angle / 41.92 41.75 42.02 0.27 – EX
Halves angle, °
Facet Twist, ° 0.32 0.03 0.83 0.80 – EX
Crown height, mm 0.958 0.947 0.971 0.024 EX EX
Pavilion height, mm 2.838 2.822 2.851 0.030 – –
Table, mm 3.795 3.791 3.805 0.014 EX EX
Culet, mm 0.042 0.036 0.045 0.009 FR EX
Girdle height bezel, mm 0.224 0.207 0.238 0.031 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.17 34.13 34.24 0.11 – –
Pavilion angle, ° 40.75 40.71 40.76 0.05 – –
Fish eye effect, ° 7.84 – – – N/A –
Culet through Crown Bezel, ° 12.14 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.13 -0.23 0.31 -0.27 0.10 0.03 0.15 -0.03
Crown azimuths dev. from ideal -0.11 -0.31 -0.46 0.55 0.38 0.28 -0.13 0.03
Crown painting 2.02 2.09 2.25 1.79 1.89 1.20 2.64 1.77
1.56 0.88 1.73 2.75 2.06 2.88 -0.05 1.49
Pavilion painting -0.65 -0.27 -0.35 -0.78 0.46 -0.26 -0.62 0.16
-0.07 0.12 -0.45 -1.37 -0.25 0.13 -0.20 0.40
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.11 ± 0.21 % 0.007 ± 0.014 mm N/A
Girdle-Table offset by table axis 0.08 ± 0.19 % 0.006 ± 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 6.618 6.643 6.635 6.624 – – – –
Radius, mm 3.311 3.321 3.318 3.315 3.307 3.321 3.317 3.309
Crown angle, ° 34.31 34.38 34.14 34.07 34.17 33.93 34.12 34.26
Pavilion angle, ° 40.65 40.75 40.74 40.80 40.85 40.77 40.69 40.72
Total height, % – – – – – – – –
Crown height, % 14.55 14.64 14.36 14.44 14.28 14.34 14.53 14.42
Crown height bone, % 14.02 13.93 13.87 13.82 14.09 13.93 13.81 14.38
Pavilion height, % 42.55 42.86 42.87 43.00 42.91 42.91 42.67 42.61
Pavilion upperbone, % 42.85 42.82 43.08 42.94 43.00 43.08 42.73 42.60
Table, % 57.18 57.16 57.21 57.37 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.52 3.12 3.39 3.18 3.42 3.37 3.42 3.58
Girdle height bone, % 3.75 3.86 3.66 3.86 3.52 3.61 4.08 3.64
Girdle height 2.07 1.73 1.81 2.24 1.80 1.76 1.97 2.19
valley, % 1.87 1.95 1.91 1.88 2.16 2.13 2.06 2.06
Star: 50.91: 51.25: 51.01: 50.49: 51.16: 51.09: 50.61: 50.27:
Upper ratio, % 49.09 48.75 48.99 49.51 48.84 48.91 49.39 49.73
Star angle, ° 21.30 21.11 20.81 20.91 20.67 21.54 20.81 21.12
Upper girdle 39.66 39.62 39.78 39.77 39.53 39.74 39.40 39.56
angle, ° 40.10 39.98 39.48 39.16 39.24 39.22 40.71 40.11
Length girdle 77.42 78.59 76.86 77.07 78.13 78.34 77.28 77.79
facet, % 77.48 77.03 77.83 77.96 77.68 76.82 77.85 77.23
Lower girdle angle / 41.87 41.94 41.94 41.85 41.87 41.96 42.02 41.95
Halves angle, ° 42.01 41.90 41.99 42.00 41.90 41.96 41.75 41.79
Facet Twist, ° 0.03 0.07 0.76 0.83 0.29 0.26 0.27 0.07
Crown height, mm 0.965 0.971 0.952 0.958 0.947 0.951 0.964 0.957
Pavilion height, mm 2.822 2.842 2.843 2.851 2.846 2.845 2.829 2.826
Table, mm 3.792 3.791 3.794 3.805 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.234 0.207 0.225 0.211 0.227 0.224 0.227 0.238
 
Measurement as per OctoNus theory:
Crown angle, ° 34.24 34.15 34.13 34.17 – – – –
Pavilion angle, ° 40.75 40.76 40.71 40.76 – – – –
MIC, mm 6.610 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, ° 1.81 Painting N/A 2.88 EX
Crown,notch. 0.5, Small 0.8
Pavilion, ° -0.25 N/A -1.37 EX
Pavilion,notch. 0.1, Negligible 0.4