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 2.03, 2.0318
Measurements 8.162 (8.138-8.179) x 4.993 / 0.000 (mm)
Spread -0.02ct, -1.21 %
AGS Spread -0.03 ct, -1.36%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
8.138 mm 8.179 mm 1.005 8.138 mm 8.179 mm 8.162 mm 4.993 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.235 mm 3.490 mm 4.621 mm 0.028 mm 0.268 mm 0.273 mm 0.130 mm
Appraiser title GIA Facetware.Mfg
Overall cut quality EX
Symmetry appraiser title GIA Facetware.Mfg
Overall symmetry quality VG
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 8.162 8.138 8.179 0.51% - EX
Radius, mm 4.079 4.062 4.093 0.031% – –
Crown angle, ° 34.90 34.62 35.31 0.69 EX EX
Pavilion angle, ° 40.66 40.39 40.90 0.51 EX EX
Total height, % 61.18 – – – - –
Crown height, % 15.13 14.99 15.44 0.44 - EX
Crown height bone, % 15.07 14.75 15.29 0.54 – –
Pavilion height, % 42.76 42.49 43.04 0.55 – –
Pavilion upperbone, % 42.77 42.56 43.03 0.47 – –
Table, % 56.62 56.26 56.84 0.59 EX EX
Culet, % 0.34 0.27 0.41 0.14 EX -
Girdle height bezel, % 3.28 3.12 3.43 0.31 EX EX
Girdle height bone, % 3.35 3.27 3.47 0.20 – -
Girdle height 1.60 1.34 1.79 0.45 - -
valley, %
Star: 48.70: 47.01: 49.47: 2.46 EX EX
Upper ratio, % 51.30 52.99 50.53
Star angle, ° 21.61 21.25 22.24 0.99 – EX
Upper girdle 41.21 40.28 42.54 2.27 – EX
angle, °
Length girdle 77.05 76.16 78.42 2.27 EX EX
facet, %
Lower girdle angle / 41.84 41.53 42.08 0.55 – EX
Halves angle, °
Facet Twist, ° 0.42 0.06 0.68 0.63 – -
Crown height, mm 1.235 1.224 1.260 0.036 - EX
Pavilion height, mm 3.490 3.468 3.513 0.045 – –
Table, mm 4.621 4.591 4.639 0.048 EX EX
Culet, mm 0.028 0.022 0.033 0.011 EX -
Girdle height bezel, mm 0.268 0.255 0.280 0.025 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.90 34.75 34.97 0.22 – –
Pavilion angle, ° 40.66 40.60 40.73 0.13 – –
Fish eye effect, ° 7.83 – – – - –
Culet through Crown Bezel, ° 9.82 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.02 0.10 -0.02 -0.76 -0.55 -0.72 0.21 0.26
Crown azimuths dev. from ideal -0.37 0.48 -0.54 -0.51 0.16 -0.16 0.18 -0.29
Crown painting 0.95 -1.86 0.99 0.09 0.71 -0.61 1.27 -0.63
2.27 0.69 -0.20 -1.18 -0.11 0.30 0.05 0.93
Pavilion painting 0.00 -0.38 0.25 -0.24 0.31 -0.13 0.10 -0.30
0.42 -0.12 0.07 -0.89 0.65 -0.54 0.36 -0.14
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.53 ± 0.18 % 0.044 ± 0.015 mm VG
Girdle-Table offset by table axis 0.19 ± 0.15 % 0.016 ± 0.013 mm EX
Table-Culet offset by table axis 0.73 ± 0.19 % 0.059 ± 0.016 mm VG
Girdle to table-culet line offset 0.73 % 0.059 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 8.144 8.170 8.160 8.168 – – – –
Radius, mm 4.068 4.088 4.076 4.080 4.076 4.081 4.084 4.088
Crown angle, ° 35.08 34.62 34.62 34.65 34.85 34.88 35.31 35.18
Pavilion angle, ° 40.78 40.85 40.90 40.78 40.68 40.49 40.39 40.41
Total height, % – – – – – – – –
Crown height, % 15.44 15.06 14.99 15.01 15.02 15.10 15.16 15.30
Crown height bone, % 15.25 15.00 14.93 14.83 14.75 15.21 15.29 15.27
Pavilion height, % 42.49 42.70 42.75 42.94 43.04 42.91 42.74 42.53
Pavilion upperbone, % 42.63 42.71 42.91 42.99 43.03 42.70 42.56 42.61
Table, % 56.26 56.63 56.84 56.73 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.25 3.41 3.43 3.23 3.12 3.17 3.28 3.35
Girdle height bone, % 3.29 3.47 3.34 3.36 3.40 3.27 3.33 3.30
Girdle height 1.76 1.65 1.68 1.79 1.71 1.47 1.67 1.34
valley, % 1.62 1.39 1.67 1.35 1.54 1.67 1.76 1.49
Star: 49.47: 47.01: 48.40: 48.77: 49.27: 48.97: 49.03: 48.70:
Upper ratio, % 50.53 52.99 51.60 51.23 50.73 51.03 50.97 51.30
Star angle, ° 21.61 21.41 21.42 21.25 21.73 21.49 22.24 21.72
Upper girdle 41.16 41.79 40.31 40.72 40.64 41.19 40.55 41.27
angle, ° 40.28 40.91 41.88 42.54 42.09 41.64 41.25 41.10
Length girdle 78.16 78.42 76.83 76.78 76.93 76.84 76.60 77.19
facet, % 76.16 76.36 77.43 77.20 76.44 77.35 76.93 77.24
Lower girdle angle / 41.96 42.01 42.04 42.08 42.06 42.05 41.89 41.89
Halves angle, ° 41.80 41.80 41.54 41.66 41.53 41.53 41.66 41.93
Facet Twist, ° 0.42 0.35 0.54 0.23 0.68 0.53 0.06 0.58
Crown height, mm 1.260 1.229 1.224 1.225 1.226 1.232 1.237 1.249
Pavilion height, mm 3.468 3.485 3.490 3.504 3.513 3.502 3.488 3.471
Table, mm 4.591 4.622 4.639 4.630 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.265 0.279 0.280 0.264 0.255 0.259 0.268 0.273
 
Measurement as per OctoNus theory:
Crown angle, ° 34.97 34.75 34.97 34.91 – – – –
Pavilion angle, ° 40.73 40.67 40.65 40.60 – – – –
MIC, mm 8.138 Extra Facet Crown No –
Girdle to MIC, mm 0.000 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 0.23 EX 2.27 -
Crown,notch. 0.1, Negligible 0.6
Pavilion, ° -0.04 EX -0.89 -
Pavilion,notch. 0.0, Negligible 0.2