Illustrated report for brilliant

Polished Brilliant
Brilliant
13.10.2025
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 2.08, 2.0873
Measurements 8.238 (8.208-8.256) x 5.035 / 0.003 (mm)
Spread -0.02ct, -1.11 %
AGS Spread -0.03 ct, -1.26%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
8.208 mm 8.256 mm 1.006 8.208 mm 8.256 mm 8.238 mm 5.035 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.220 mm 3.537 mm 4.637 mm 0.030 mm 0.278 mm 0.326 mm 0.164 mm
Appraiser title Lexus_Opt_12FEB2011
Overall cut quality --
Symmetry appraiser title Symmetry
Overall symmetry quality GD
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 8.238 8.208 8.256 0.59% -- EX
Radius, mm 4.117 4.102 4.132 0.029% – –
Crown angle, ° 34.29 34.07 34.45 0.38 EX EX
Pavilion angle, ° 40.78 40.59 41.06 0.47 EX EX
Total height, % 61.12 – – – EX –
Crown height, % 14.81 14.67 14.96 0.29 EX EX
Crown height bone, % 14.25 13.72 14.49 0.77 – –
Pavilion height, % 42.94 42.70 43.38 0.68 – –
Pavilion upperbone, % 42.92 42.70 43.32 0.63 – –
Table, % 56.29 56.15 56.45 0.30 EX EX
Culet, % 0.36 0.26 0.46 0.20 GD EX
Girdle height bezel, % 3.38 2.97 3.60 0.63 EX EX
Girdle height bone, % 3.95 3.58 4.27 0.69 – EX
Girdle height 1.99 1.62 2.26 0.64 N/A EX
valley, %
Star: 49.34: 47.61: 50.49: 2.88 EX VG
Upper ratio, % 50.66 52.39 49.51
Star angle, ° 20.99 20.45 21.69 1.24 – EX
Upper girdle 39.47 38.07 40.59 2.51 – GD
angle, °
Length girdle 77.97 76.36 81.26 4.90 EX VG
facet, %
Lower girdle angle / 41.93 41.67 42.22 0.55 – EX
Halves angle, °
Facet Twist, ° 0.61 0.13 1.33 1.20 – VG
Crown height, mm 1.220 1.208 1.232 0.024 EX EX
Pavilion height, mm 3.537 3.517 3.574 0.056 – –
Table, mm 4.637 4.625 4.650 0.025 EX EX
Culet, mm 0.030 0.021 0.038 0.017 GD EX
Girdle height bezel, mm 0.278 0.245 0.297 0.052 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.29 34.23 34.34 0.11 – –
Pavilion angle, ° 40.78 40.71 40.91 0.19 – –
Fish eye effect, ° 8.52 – – – N/A –
Culet through Crown Bezel, ° 10.52 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.26 0.23 0.00 -0.78 -0.79 -0.70 0.00 0.38
Crown azimuths dev. from ideal 0.03 0.73 0.83 0.58 0.34 -0.18 0.15 0.16
Crown painting 3.10 4.01 3.01 2.20 2.51 1.27 2.15 0.85
2.29 1.59 2.15 0.75 0.59 0.00 2.03 2.55
Pavilion painting 0.36 -0.25 0.27 -0.16 0.37 0.25 -0.21 0.28
-0.41 0.11 -0.25 -0.42 0.13 -0.43 -0.06 -0.42
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.14 ± 0.18 % 0.012 ± 0.015 mm N/A
Girdle-Table offset by table axis 0.16 ± 0.15 % 0.013 ± 0.013 mm N/A
Table-Culet offset by table axis 0.29 ± 0.19 % 0.024 ± 0.016 mm N/A
Girdle to table-culet line offset 0.29 % 0.024 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 8.215 8.247 8.247 8.251 – – – –
Radius, mm 4.108 4.126 4.116 4.125 4.106 4.121 4.131 4.125
Crown angle, ° 34.25 34.22 34.26 34.40 34.44 34.45 34.27 34.07
Pavilion angle, ° 41.06 40.81 40.87 40.82 40.75 40.62 40.59 40.72
Total height, % – – – – – – – –
Crown height, % 14.77 14.82 14.80 14.96 14.80 14.87 14.76 14.67
Crown height bone, % 13.72 14.07 14.49 14.40 14.34 14.42 14.48 14.08
Pavilion height, % 43.38 43.03 42.90 42.96 42.72 42.70 42.78 43.04
Pavilion upperbone, % 43.13 42.96 43.05 42.74 42.70 42.73 42.70 43.32
Table, % 56.21 56.34 56.45 56.15 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 2.97 3.28 3.42 3.20 3.60 3.55 3.57 3.42
Girdle height bone, % 4.27 4.09 3.58 3.98 4.08 3.97 3.94 3.72
Girdle height 1.77 2.14 2.26 2.07 1.88 1.63 1.96 1.94
valley, % 2.12 2.22 2.09 1.87 2.15 2.06 1.99 1.62
Star: 47.61: 48.71: 49.19: 50.34: 50.41: 50.11: 50.49: 47.89:
Upper ratio, % 52.39 51.29 50.81 49.66 49.59 49.89 49.51 52.11
Star angle, ° 20.54 21.34 21.04 20.77 21.69 21.19 20.89 20.45
Upper girdle 38.56 38.07 38.45 38.91 39.44 39.73 39.61 40.30
angle, ° 39.55 39.71 39.75 40.57 40.28 40.59 39.02 39.04
Length girdle 78.32 78.13 76.84 77.09 77.26 77.44 77.18 76.36
facet, % 77.23 76.88 79.74 78.67 77.89 77.31 79.92 81.26
Lower girdle angle / 42.22 41.99 41.91 41.98 42.01 42.01 41.95 42.04
Halves angle, ° 41.90 41.81 41.71 41.77 41.67 41.75 41.97 42.18
Facet Twist, ° 0.25 0.48 0.81 1.33 1.11 0.50 0.13 0.24
Crown height, mm 1.217 1.221 1.219 1.232 1.219 1.225 1.216 1.208
Pavilion height, mm 3.574 3.544 3.534 3.539 3.519 3.517 3.524 3.545
Table, mm 4.630 4.641 4.650 4.625 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.245 0.270 0.282 0.263 0.297 0.293 0.294 0.282
 
Measurement as per OctoNus theory:
Crown angle, ° 34.34 34.33 34.26 34.23 – – – –
Pavilion angle, ° 40.91 40.71 40.73 40.77 – – – –
MIC, mm 8.205 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, ° 1.94 Painting N/A 4.01 EX
Crown,notch. 0.5, Small 1.1
Pavilion, ° -0.05 N/A -0.43 EX
Pavilion,notch. 0.0, Negligible 0.1