Illustrated report for brilliant

Polished Brilliant
Brilliant
03.10.2025
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 2.06, 2.0668
Measurements 8.259 (8.229-8.278) x 5.010 / 0.002 (mm)
Spread 0.01ct, 0.62 %
AGS Spread 0.01 ct, 0.49%
Extra Facet Girdle / Nat 1 (0/1)
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
8.229 mm 8.278 mm 1.006 8.229 mm 8.278 mm 8.259 mm 5.010 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.226 mm 3.541 mm 4.651 mm 0.022 mm 0.243 mm 0.278 mm 0.133 mm
Appraiser title GIA Facetware.Mfg
Overall cut quality EX
Symmetry appraiser title GIA Facetware.Mfg
Overall symmetry quality GD
Final grade VG
Model building info The model has big errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 8.259 8.229 8.278 0.60% - EX
Radius, mm 4.128 4.112 4.145 0.034% – –
Crown angle, ° 34.26 33.83 34.57 0.74 EX EX
Pavilion angle, ° 40.71 40.56 40.82 0.27 EX EX
Total height, % 60.66 – – – - –
Crown height, % 14.84 14.59 15.08 0.48 - EX
Crown height bone, % 14.31 14.08 14.61 0.53 – –
Pavilion height, % 42.88 42.56 43.11 0.55 – –
Pavilion upperbone, % 42.98 42.61 43.36 0.75 – –
Table, % 56.32 56.16 56.43 0.27 EX EX
Culet, % 0.27 0.22 0.29 0.08 EX -
Girdle height bezel, % 2.94 2.77 3.18 0.40 EX EX
Girdle height bone, % 3.37 3.03 3.80 0.77 – -
Girdle height 1.61 1.31 2.05 0.74 - -
valley, %
Star: 46.78: 45.79: 47.73: 1.94 EX EX
Upper ratio, % 53.22 54.21 52.27
Star angle, ° 20.82 20.22 21.53 1.31 – EX
Upper girdle 38.96 38.29 40.20 1.92 – EX
angle, °
Length girdle 77.54 75.46 79.71 4.25 EX EX
facet, %
Lower girdle angle / 41.89 41.71 42.02 0.31 – EX
Halves angle, °
Facet Twist, ° 0.59 0.23 1.24 1.01 – -
Crown height, mm 1.226 1.205 1.245 0.040 - EX
Pavilion height, mm 3.541 3.515 3.561 0.046 – –
Table, mm 4.651 4.638 4.660 0.023 EX EX
Culet, mm 0.022 0.018 0.024 0.006 EX -
Girdle height bezel, mm 0.243 0.229 0.262 0.033 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.26 34.15 34.41 0.25 – –
Pavilion angle, ° 40.71 40.67 40.79 0.12 – –
Fish eye effect, ° 8.23 – – – - –
Culet through Crown Bezel, ° 11.05 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.13 0.08 0.05 -0.20 -0.02 -0.01 -0.05 -0.05
Crown azimuths dev. from ideal -0.07 0.74 0.30 1.06 0.96 0.53 -0.27 0.64
Crown painting 1.94 2.39 -0.64 1.98 0.25 1.79 3.07 1.60
3.29 2.16 2.83 2.84 1.97 -0.04 3.67 2.31
Pavilion painting -0.33 0.15 -0.40 0.00 -0.44 0.43 -0.68 0.39
-0.08 0.02 0.01 -0.16 -0.48 -0.15 0.06 -0.48
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.40 ± 0.18 % 0.033 ± 0.015 mm EX
Girdle-Table offset by table axis 0.29 ± 0.15 % 0.024 ± 0.013 mm EX
Table-Culet offset by table axis 0.69 ± 0.19 % 0.057 ± 0.016 mm EX
Girdle to table-culet line offset 0.69 % 0.057 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 8.233 8.257 8.270 8.267 – – – –
Radius, mm 4.113 4.123 4.142 4.133 4.120 4.133 4.128 4.132
Crown angle, ° 34.43 34.21 33.83 34.24 33.97 34.38 34.47 34.57
Pavilion angle, ° 40.75 40.71 40.78 40.77 40.82 40.66 40.56 40.63
Total height, % – – – – – – – –
Crown height, % 14.59 14.77 14.67 15.08 14.89 14.92 15.07 14.76
Crown height bone, % 14.12 14.22 14.40 14.43 14.25 14.40 14.61 14.08
Pavilion height, % 43.11 43.11 43.07 42.80 42.63 42.56 42.64 43.08
Pavilion upperbone, % 43.23 43.32 42.87 42.75 42.61 42.69 43.02 43.36
Table, % 56.28 56.41 56.16 56.43 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 2.95 2.77 2.92 2.78 3.14 3.18 2.95 2.82
Girdle height bone, % 3.32 3.12 3.39 3.48 3.80 3.57 3.03 3.22
Girdle height 1.56 1.50 1.31 1.48 1.81 1.47 1.56 1.83
valley, % 1.93 2.05 2.03 1.46 1.52 1.36 1.54 1.36
Star: 46.67: 46.53: 45.79: 46.50: 47.10: 47.73: 47.14: 46.80:
Upper ratio, % 53.33 53.47 54.21 53.50 52.90 52.27 52.86 53.20
Star angle, ° 20.34 20.97 20.50 20.70 21.15 21.53 20.22 21.12
Upper girdle 39.36 38.88 38.33 38.46 39.47 38.85 38.60 38.77
angle, ° 38.29 38.77 38.87 39.13 39.39 40.20 38.72 39.21
Length girdle 76.73 76.06 78.55 77.68 79.71 78.48 76.44 77.38
facet, % 76.79 75.46 78.17 77.52 77.40 77.34 78.97 78.00
Lower girdle angle / 41.90 41.88 41.97 42.01 41.84 41.87 42.01 41.98
Halves angle, ° 42.02 41.89 41.74 41.86 41.71 41.76 41.80 42.02
Facet Twist, ° 0.23 0.64 0.23 1.24 0.95 0.52 0.25 0.66
Crown height, mm 1.205 1.220 1.211 1.245 1.230 1.232 1.245 1.219
Pavilion height, mm 3.560 3.561 3.557 3.535 3.521 3.515 3.522 3.558
Table, mm 4.648 4.659 4.638 4.660 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.244 0.229 0.241 0.230 0.259 0.262 0.243 0.233
 
Measurement as per OctoNus theory:
Crown angle, ° 34.20 34.30 34.15 34.41 – – – –
Pavilion angle, ° 40.79 40.68 40.67 40.70 – – – –
MIC, mm 8.227 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, ° 1.96 Painting EX 3.67 -
Crown,notch. 0.5, Small 1.0
Pavilion, ° -0.13 EX -0.68 -
Pavilion,notch. 0.0, Negligible 0.2