Illustrated report for brilliant

Polished Brilliant
Brilliant
01.10.2025
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.84, 1.8386
Measurements 7.827 (7.814-7.838) x 4.842 / 0.006 (mm)
Spread -0.07ct, -3.85 %
AGS Spread -0.07 ct, -4.00%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
7.814 mm 7.838 mm 1.003 7.814 mm 7.838 mm 7.827 mm 4.842 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.174 mm 3.356 mm 4.457 mm 0.025 mm 0.312 mm 0.317 mm 0.182 mm
Appraiser title GIA Facetware.Mfg
Overall cut quality EX
Symmetry appraiser title GIA Facetware.Mfg
Overall symmetry quality EX
Final grade EX
Model building info The model has medium errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 7.827 7.814 7.838 0.31% - EX
Radius, mm 3.912 3.903 3.920 0.017% – –
Crown angle, ° 34.87 34.71 34.92 0.21 EX EX
Pavilion angle, ° 40.73 40.58 40.94 0.37 EX EX
Total height, % 61.87 – – – - –
Crown height, % 14.99 14.77 15.23 0.46 - EX
Crown height bone, % 15.00 14.67 15.27 0.59 – –
Pavilion height, % 42.88 42.60 43.19 0.59 – –
Pavilion upperbone, % 42.81 42.62 42.97 0.36 – –
Table, % 56.95 56.74 57.20 0.46 EX EX
Culet, % 0.32 0.26 0.37 0.11 EX -
Girdle height bezel, % 3.99 3.83 4.08 0.25 EX EX
Girdle height bone, % 4.05 3.78 4.25 0.47 – -
Girdle height 2.32 2.12 2.61 0.49 - -
valley, %
Star: 48.87: 48.10: 49.75: 1.66 EX EX
Upper ratio, % 51.13 51.90 50.25
Star angle, ° 21.41 21.02 22.11 1.09 – EX
Upper girdle 41.47 41.12 42.10 0.98 – EX
angle, °
Length girdle 75.83 74.94 76.67 1.73 EX EX
facet, %
Lower girdle angle / 41.95 41.75 42.15 0.40 – EX
Halves angle, °
Facet Twist, ° 0.26 0.07 0.47 0.40 – -
Crown height, mm 1.174 1.156 1.192 0.036 - EX
Pavilion height, mm 3.356 3.334 3.380 0.046 – –
Table, mm 4.457 4.441 4.477 0.036 EX EX
Culet, mm 0.025 0.021 0.029 0.008 EX -
Girdle height bezel, mm 0.312 0.300 0.319 0.020 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.87 34.80 34.90 0.11 – –
Pavilion angle, ° 40.73 40.71 40.76 0.05 – –
Fish eye effect, ° 7.89 – – – - –
Culet through Crown Bezel, ° 9.59 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.03 0.12 0.19 -0.03 -0.10 -0.33 -0.25 -0.11
Crown azimuths dev. from ideal 0.34 -0.29 0.11 0.31 0.32 0.08 -0.03 -0.12
Crown painting 0.04 -0.45 -0.12 0.50 -0.49 -1.08 0.14 0.25
-0.04 -0.24 -0.74 0.57 -0.39 -0.10 -0.35 -0.06
Pavilion painting -0.12 0.04 -0.02 0.06 -0.05 0.21 0.07 0.02
0.11 0.13 0.04 0.03 0.01 -0.05 0.09 0.01
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.01 ± 0.19 % 0.001 ± 0.014 mm EX
Girdle-Table offset by table axis 0.35 ± 0.16 % 0.028 ± 0.013 mm EX
Table-Culet offset by table axis 0.34 ± 0.20 % 0.027 ± 0.016 mm EX
Girdle to table-culet line offset 0.34 % 0.027 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 7.822 7.836 7.828 7.838 – – – –
Radius, mm 3.906 3.916 3.913 3.919 3.916 3.920 3.915 3.919
Crown angle, ° 34.88 34.71 34.90 34.85 34.87 34.88 34.91 34.92
Pavilion angle, ° 40.61 40.69 40.76 40.94 40.81 40.82 40.66 40.58
Total height, % – – – – – – – –
Crown height, % 15.23 15.04 15.07 14.85 14.82 14.77 15.03 15.15
Crown height bone, % 15.27 15.02 15.11 14.67 14.80 14.82 15.09 15.21
Pavilion height, % 42.60 42.84 42.91 43.19 42.99 43.07 42.76 42.67
Pavilion upperbone, % 42.73 42.83 42.97 42.96 42.97 42.80 42.62 42.62
Table, % 56.74 57.20 56.86 56.99 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 4.04 3.98 3.88 3.83 4.05 4.03 4.08 4.04
Girdle height bone, % 3.86 4.02 3.78 4.23 4.09 4.25 4.15 4.03
Girdle height 2.26 2.19 2.27 2.12 2.29 2.14 2.23 2.53
valley, % 2.37 2.26 2.55 2.51 2.35 2.61 2.22 2.23
Star: 48.99: 48.10: 49.24: 49.75: 49.16: 48.22: 49.28: 48.21:
Upper ratio, % 51.01 51.90 50.76 50.25 50.84 51.78 50.72 51.79
Star angle, ° 22.11 21.10 21.17 21.47 21.32 21.71 21.39 21.02
Upper girdle 41.42 41.34 41.32 41.12 41.65 42.10 41.33 41.17
angle, ° 41.53 41.78 41.47 41.28 41.63 41.36 41.44 41.59
Length girdle 74.94 75.76 75.72 75.37 75.33 75.29 76.37 76.37
facet, % 76.66 76.67 75.18 75.30 75.90 76.16 76.04 76.22
Lower girdle angle / 41.85 41.89 41.95 42.00 42.00 42.13 42.15 41.95
Halves angle, ° 42.01 42.06 42.00 41.89 41.84 41.75 41.84 41.81
Facet Twist, ° 0.25 0.47 0.14 0.28 0.36 0.34 0.16 0.07
Crown height, mm 1.192 1.178 1.179 1.162 1.160 1.156 1.176 1.186
Pavilion height, mm 3.334 3.353 3.359 3.380 3.365 3.371 3.347 3.340
Table, mm 4.441 4.477 4.451 4.461 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.316 0.312 0.304 0.300 0.317 0.315 0.319 0.316
 
Measurement as per OctoNus theory:
Crown angle, ° 34.87 34.80 34.90 34.88 – – – –
Pavilion angle, ° 40.71 40.76 40.71 40.76 – – – –
MIC, mm 7.808 Extra Facet Crown No –
Girdle to MIC, mm 0.006 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.16 EX -1.08 -
Crown,notch. 0.0, Negligible 0.3
Pavilion, ° 0.04 EX 0.21 -
Pavilion,notch. 0.0, Negligible 0.1