Illustrated report for brilliant

Polished Brilliant
Brilliant
02.04.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.76, 1.7673
Measurements 7.748 (7.735-7.764) x 4.774 / 0.002 (mm)
Spread -0.05ct, -2.90 %
AGS Spread -0.05 ct, -3.05%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
7.735 mm 7.764 mm 1.004 7.735 mm 7.764 mm 7.748 mm 4.774 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.155 mm 3.331 mm 4.416 mm 0.029 mm 0.288 mm 0.294 mm 0.163 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 small errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 7.748 7.735 7.764 0.37% - EX
Radius, mm 3.873 3.865 3.887 0.023% – –
Crown angle, ° 34.75 34.68 34.83 0.15 EX EX
Pavilion angle, ° 40.81 40.75 40.91 0.16 EX EX
Total height, % 61.61 – – – - –
Crown height, % 14.90 14.74 15.14 0.40 - EX
Crown height bone, % 14.90 14.67 15.19 0.52 – –
Pavilion height, % 42.99 42.74 43.20 0.46 – –
Pavilion upperbone, % 42.93 42.71 43.13 0.42 – –
Table, % 57.00 56.90 57.17 0.27 EX EX
Culet, % 0.38 0.26 0.45 0.19 EX -
Girdle height bezel, % 3.72 3.51 3.89 0.38 EX EX
Girdle height bone, % 3.79 3.60 3.98 0.38 – -
Girdle height 2.10 1.78 2.34 0.56 - -
valley, %
Star: 48.97: 48.09: 49.59: 1.49 EX EX
Upper ratio, % 51.03 51.91 50.41
Star angle, ° 21.33 20.95 21.67 0.72 – EX
Upper girdle 41.28 40.40 41.71 1.31 – EX
angle, °
Length girdle 77.18 76.47 77.75 1.28 EX EX
facet, %
Lower girdle angle / 41.93 41.76 42.06 0.30 – EX
Halves angle, °
Facet Twist, ° 0.39 0.08 0.96 0.88 – -
Crown height, mm 1.155 1.142 1.173 0.031 - EX
Pavilion height, mm 3.331 3.312 3.347 0.035 – –
Table, mm 4.416 4.409 4.430 0.021 EX EX
Culet, mm 0.029 0.020 0.035 0.015 EX -
Girdle height bezel, mm 0.288 0.272 0.301 0.030 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.75 34.73 34.77 0.03 – –
Pavilion angle, ° 40.81 40.77 40.85 0.08 – –
Fish eye effect, ° 8.19 – – – - –
Culet through Crown Bezel, ° 10.06 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.03 -0.38 0.13 0.19 0.28 0.15 -0.47 -0.03
Crown azimuths dev. from ideal 0.07 -0.02 -0.01 -0.31 -0.72 -0.47 -0.18 -0.26
Crown painting 0.17 -0.82 1.11 -0.03 0.41 0.10 -0.67 0.39
-0.55 0.91 -0.36 1.49 0.03 0.29 -0.51 -0.20
Pavilion painting 0.36 0.58 0.02 -0.71 0.73 0.44 0.31 0.23
0.17 -0.06 0.29 0.91 -0.18 0.14 0.31 -0.32
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.29 ± 0.19 % 0.023 ± 0.014 mm EX
Girdle-Table offset by table axis 0.21 ± 0.16 % 0.016 ± 0.013 mm EX
Table-Culet offset by table axis 0.49 ± 0.20 % 0.038 ± 0.016 mm EX
Girdle to table-culet line offset 0.49 % 0.038 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 7.747 7.746 7.752 7.747 – – – –
Radius, mm 3.873 3.873 3.877 3.872 3.873 3.873 3.874 3.874
Crown angle, ° 34.76 34.74 34.80 34.83 34.72 34.73 34.74 34.68
Pavilion angle, ° 40.78 40.91 40.76 40.75 40.76 40.79 40.85 40.87
Total height, % – – – – – – – –
Crown height, % 15.06 15.14 14.98 14.74 14.82 14.78 14.87 14.84
Crown height bone, % 15.19 14.98 14.93 14.89 14.67 14.72 14.85 14.92
Pavilion height, % 42.74 42.97 42.97 43.09 43.20 43.12 42.98 42.88
Pavilion upperbone, % 42.76 43.03 42.91 43.00 43.13 43.01 42.89 42.71
Table, % 56.90 56.90 57.02 57.17 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.81 3.51 3.67 3.78 3.60 3.71 3.77 3.89
Girdle height bone, % 3.67 3.60 3.77 3.72 3.81 3.89 3.87 3.98
Girdle height 2.13 2.05 1.78 1.88 2.15 2.07 2.09 2.01
valley, % 2.05 2.11 2.17 2.23 2.18 2.12 2.34 2.23
Star: 49.11: 48.74: 48.84: 49.59: 49.21: 48.09: 49.22: 48.98:
Upper ratio, % 50.89 51.26 51.16 50.41 50.79 51.91 50.78 51.02
Star angle, ° 21.59 21.12 21.67 21.49 20.95 21.21 21.15 21.43
Upper girdle 41.47 41.54 41.00 41.23 41.30 41.56 41.71 41.55
angle, ° 41.43 41.06 41.21 40.40 41.27 41.11 41.27 41.36
Length girdle 77.40 77.64 77.07 77.58 76.87 76.82 76.79 76.93
facet, % 76.81 77.75 77.59 77.70 76.47 77.31 76.89 77.31
Lower girdle angle / 41.90 41.98 42.05 42.06 41.76 41.90 41.83 41.85
Halves angle, ° 41.93 41.96 41.83 41.85 42.04 42.05 41.95 41.96
Facet Twist, ° 0.08 0.40 0.10 0.46 0.96 0.58 0.33 0.18
Crown height, mm 1.167 1.173 1.161 1.142 1.148 1.145 1.152 1.150
Pavilion height, mm 3.312 3.329 3.329 3.339 3.347 3.341 3.330 3.323
Table, mm 4.409 4.409 4.418 4.430 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.295 0.272 0.284 0.293 0.279 0.288 0.292 0.301
 
Measurement as per OctoNus theory:
Crown angle, ° 34.74 34.73 34.77 34.75 – – – –
Pavilion angle, ° 40.77 40.85 40.80 40.81 – – – –
MIC, mm 7.733 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, ° 0.11 EX 1.49 -
Crown,notch. 0.0, Negligible 0.4
Pavilion, ° 0.20 EX 0.91 -
Pavilion,notch. 0.1, Negligible 0.2