Illustrated report for brilliant

Polished Brilliant
Brilliant
02.05.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 3.01, 3.0148
Measurements 9.256 (9.238-9.274) x 5.720 / 0.004 (mm)
Spread -0.09ct, -2.95 %
AGS Spread -0.09 ct, -3.10%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
9.238 mm 9.274 mm 1.004 9.238 mm 9.274 mm 9.256 mm 5.720 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.406 mm 3.973 mm 5.193 mm 0.031 mm 0.341 mm 0.342 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 9.256 9.238 9.274 0.39% GD EX
Radius, mm 4.626 4.616 4.640 0.024% – –
Crown angle, ° 34.75 34.56 34.99 0.43 EX EX
Pavilion angle, ° 40.74 40.61 40.85 0.24 EX EX
Total height, % 61.80 – – – VG –
Crown height, % 15.20 14.93 15.71 0.78 EX VG
Crown height bone, % 15.29 15.04 15.50 0.46 – –
Pavilion height, % 42.92 42.71 43.04 0.33 – –
Pavilion upperbone, % 42.82 42.66 42.96 0.30 – –
Table, % 56.10 55.72 56.42 0.70 EX EX
Culet, % 0.34 0.29 0.37 0.08 GD EX
Girdle height bezel, % 3.69 3.38 3.97 0.58 EX EX
Girdle height bone, % 3.69 3.59 3.82 0.22 – EX
Girdle height 2.00 1.78 2.21 0.42 N/A EX
valley, %
Star: 49.35: 48.28: 50.22: 1.94 EX EX
Upper ratio, % 50.65 51.72 49.78
Star angle, ° 21.66 21.25 22.05 0.80 – EX
Upper girdle 41.46 40.70 41.99 1.28 – VG
angle, °
Length girdle 78.50 77.63 80.19 2.56 EX EX
facet, %
Lower girdle angle / 41.83 41.65 42.02 0.37 – EX
Halves angle, °
Facet Twist, ° 0.54 0.03 1.44 1.41 – VG
Crown height, mm 1.406 1.382 1.454 0.072 EX VG
Pavilion height, mm 3.973 3.953 3.984 0.031 – –
Table, mm 5.193 5.158 5.222 0.065 EX EX
Culet, mm 0.031 0.027 0.034 0.007 GD EX
Girdle height bezel, mm 0.341 0.313 0.367 0.054 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.75 34.60 34.88 0.28 – –
Pavilion angle, ° 40.74 40.72 40.76 0.05 – –
Fish eye effect, ° 8.44 – – – N/A –
Culet through Crown Bezel, ° 8.97 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.44 0.23 0.67 -0.26 0.04 -0.35 -0.53 -0.04
Crown azimuths dev. from ideal -0.28 -0.85 -0.65 -0.32 -0.22 -0.39 0.05 -0.37
Crown painting 0.71 -0.14 -0.57 0.26 -1.36 -0.79 -0.40 -0.14
-0.61 0.10 -1.05 -0.15 -0.84 -0.60 -1.04 1.04
Pavilion painting -0.01 -0.14 0.50 -0.21 1.08 0.03 -0.54 0.22
0.15 0.36 0.15 0.62 -0.16 0.23 0.55 0.46
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.18 ± 0.16 % 0.017 ± 0.015 mm N/A
Girdle-Table offset by table axis 0.37 ± 0.14 % 0.034 ± 0.013 mm N/A
Table-Culet offset by table axis 0.38 ± 0.18 % 0.035 ± 0.016 mm N/A
Girdle to table-culet line offset 0.38 % 0.035 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 9.248 9.257 9.267 9.261 – – – –
Radius, mm 4.620 4.630 4.637 4.625 4.628 4.625 4.630 4.635
Crown angle, ° 34.99 34.89 34.56 34.58 34.76 34.87 34.76 34.62
Pavilion angle, ° 40.65 40.78 40.85 40.82 40.83 40.74 40.68 40.61
Total height, % – – – – – – – –
Crown height, % 15.71 15.31 15.10 14.93 14.99 15.00 15.28 15.25
Crown height bone, % 15.49 15.20 15.26 15.04 15.06 15.29 15.46 15.50
Pavilion height, % 42.71 42.88 42.99 42.90 43.04 43.01 42.96 42.87
Pavilion upperbone, % 42.66 42.82 42.91 42.94 42.96 42.87 42.75 42.66
Table, % 55.72 56.42 56.10 56.15 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.38 3.61 3.71 3.97 3.77 3.79 3.56 3.68
Girdle height bone, % 3.65 3.77 3.63 3.82 3.78 3.65 3.59 3.64
Girdle height 1.79 2.04 1.98 2.05 2.03 2.09 2.07 2.06
valley, % 2.21 2.15 2.07 1.78 1.81 2.01 1.89 2.01
Star: 49.77: 49.30: 48.28: 49.50: 49.10: 49.77: 50.22: 48.84:
Upper ratio, % 50.23 50.70 51.72 50.50 50.90 50.23 49.78 51.16
Star angle, ° 22.05 21.79 21.25 21.39 21.37 21.70 21.81 21.90
Upper girdle 41.14 41.41 41.62 41.30 41.45 41.51 41.58 41.55
angle, ° 41.43 41.40 41.99 41.71 41.76 41.42 41.47 40.70
Length girdle 77.96 78.17 78.19 78.25 78.15 78.57 78.29 78.32
facet, % 79.93 80.19 78.98 79.00 77.63 78.05 78.01 78.25
Lower girdle angle / 41.82 41.86 41.95 41.97 41.87 41.93 42.02 41.96
Halves angle, ° 41.87 41.78 41.74 41.77 41.74 41.65 41.69 41.68
Facet Twist, ° 0.03 1.22 1.44 0.18 0.38 0.17 0.45 0.46
Crown height, mm 1.454 1.417 1.397 1.382 1.387 1.389 1.414 1.412
Pavilion height, mm 3.953 3.969 3.979 3.971 3.984 3.981 3.976 3.968
Table, mm 5.158 5.222 5.193 5.198 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.313 0.335 0.344 0.367 0.349 0.351 0.330 0.340
 
Measurement as per OctoNus theory:
Crown angle, ° 34.87 34.88 34.66 34.60 – – – –
Pavilion angle, ° 40.74 40.76 40.76 40.72 – – – –
MIC, mm 9.234 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, ° -0.35 N/A -1.36 EX
Crown,notch. 0.1, Negligible 0.4
Pavilion, ° 0.21 N/A 1.08 EX
Pavilion,notch. 0.1, Negligible 0.3