Illustrated report for brilliant

Polished Brilliant
Brilliant
17.03.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 2.07, 2.0741
Measurements 8.203 (8.176-8.220) x 5.027 / 0.002 (mm)
Spread -0.04ct, -1.78 %
AGS Spread -0.04 ct, -1.92%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
8.176 mm 8.220 mm 1.005 8.176 mm 8.220 mm 8.203 mm 5.027 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.217 mm 3.524 mm 4.671 mm 0.031 mm 0.286 mm 0.298 mm 0.158 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 8.203 8.176 8.220 0.55% - EX
Radius, mm 4.100 4.087 4.114 0.027% – –
Crown angle, ° 34.58 34.33 34.80 0.47 EX EX
Pavilion angle, ° 40.78 40.66 40.95 0.30 EX EX
Total height, % 61.28 – – – - –
Crown height, % 14.84 14.55 15.05 0.50 - EX
Crown height bone, % 14.65 14.36 14.85 0.48 – –
Pavilion height, % 42.96 42.73 43.28 0.55 – –
Pavilion upperbone, % 43.00 42.78 43.25 0.48 – –
Table, % 56.94 56.74 57.02 0.28 EX EX
Culet, % 0.37 0.30 0.42 0.12 EX -
Girdle height bezel, % 3.48 3.02 3.99 0.98 EX EX
Girdle height bone, % 3.64 3.26 4.05 0.79 – -
Girdle height 1.93 1.47 2.40 0.94 - -
valley, %
Star: 46.71: 45.96: 47.93: 1.97 EX EX
Upper ratio, % 53.29 54.04 52.07
Star angle, ° 20.82 20.52 21.27 0.75 – EX
Upper girdle 40.38 39.26 40.93 1.67 – EX
angle, °
Length girdle 75.89 74.90 76.83 1.93 EX EX
facet, %
Lower girdle angle / 42.02 41.79 42.26 0.46 – EX
Halves angle, °
Facet Twist, ° 0.45 0.05 1.05 1.00 – -
Crown height, mm 1.217 1.194 1.235 0.041 - EX
Pavilion height, mm 3.524 3.505 3.550 0.045 – –
Table, mm 4.671 4.654 4.677 0.023 EX EX
Culet, mm 0.031 0.025 0.035 0.010 EX -
Girdle height bezel, mm 0.286 0.247 0.328 0.080 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.58 34.50 34.71 0.20 – –
Pavilion angle, ° 40.78 40.72 40.88 0.16 – –
Fish eye effect, ° 8.14 – – – - –
Culet through Crown Bezel, ° 10.58 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.13 0.00 -0.47 -0.42 0.15 0.36 -0.25 0.14
Crown azimuths dev. from ideal 0.58 0.37 0.57 0.32 0.19 0.05 0.16 -0.06
Crown painting 0.65 0.24 1.43 2.71 1.14 0.85 1.42 1.41
-0.04 -0.70 0.28 0.66 0.34 -0.29 0.94 -0.54
Pavilion painting 0.25 -0.32 -0.05 0.31 -0.13 0.42 -0.28 -0.11
-0.56 -0.16 -0.33 -0.13 -0.73 -0.59 0.16 -1.13
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.36 ± 0.18 % 0.030 ± 0.015 mm EX
Girdle-Table offset by table axis 0.36 ± 0.15 % 0.029 ± 0.013 mm EX
Table-Culet offset by table axis 0.20 ± 0.19 % 0.016 ± 0.016 mm EX
Girdle to table-culet line offset 0.20 % 0.016 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 8.213 8.210 8.182 8.220 – – – –
Radius, mm 4.105 4.099 4.089 4.110 4.106 4.110 4.091 4.108
Crown angle, ° 34.37 34.33 34.61 34.66 34.64 34.67 34.80 34.54
Pavilion angle, ° 40.66 40.81 40.68 40.67 40.79 40.95 40.88 40.83
Total height, % – – – – – – – –
Crown height, % 14.65 14.99 15.05 15.03 14.98 14.67 14.55 14.79
Crown height bone, % 14.78 14.56 14.77 14.62 14.85 14.36 14.63 14.62
Pavilion height, % 42.99 43.28 42.89 42.87 42.83 43.04 42.73 43.06
Pavilion upperbone, % 43.25 43.25 42.78 42.82 42.95 42.87 42.90 43.18
Table, % 57.02 56.99 56.74 57.02 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.65 3.02 3.35 3.39 3.47 3.58 3.99 3.43
Girdle height bone, % 3.26 3.47 3.74 3.85 3.49 4.05 3.75 3.49
Girdle height 1.75 1.47 1.47 1.88 1.94 2.19 1.94 2.01
valley, % 1.72 2.01 1.90 2.40 2.27 2.09 1.77 2.09
Star: 46.41: 46.93: 45.96: 46.82: 46.15: 47.93: 47.19: 46.31:
Upper ratio, % 53.59 53.07 54.04 53.18 53.85 52.07 52.81 53.69
Star angle, ° 20.74 20.89 20.79 21.27 20.57 20.91 20.89 20.52
Upper girdle 40.35 40.33 40.13 39.26 39.94 39.94 40.03 40.07
angle, ° 40.93 40.92 40.91 40.56 40.65 40.84 40.55 40.58
Length girdle 76.06 76.58 75.71 76.42 75.76 76.18 75.16 75.15
facet, % 76.63 76.83 76.32 75.35 75.68 75.90 75.69 74.90
Lower girdle angle / 41.94 41.95 42.10 41.94 41.80 41.79 41.96 42.07
Halves angle, ° 42.06 42.14 42.26 42.19 42.09 42.07 42.07 41.94
Facet Twist, ° 0.46 0.38 1.05 0.75 0.05 0.30 0.42 0.19
Crown height, mm 1.201 1.229 1.235 1.233 1.229 1.203 1.194 1.213
Pavilion height, mm 3.526 3.550 3.518 3.516 3.513 3.530 3.505 3.532
Table, mm 4.677 4.675 4.654 4.677 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.300 0.247 0.274 0.278 0.285 0.293 0.328 0.282
 
Measurement as per OctoNus theory:
Crown angle, ° 34.51 34.50 34.71 34.60 – – – –
Pavilion angle, ° 40.72 40.88 40.78 40.75 – – – –
MIC, mm 8.174 Extra Facet Crown Yes (1) –
Girdle to MIC, mm 0.002 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 0.66 Painting EX 2.71 -
Crown,notch. 0.2, Very small 0.7
Pavilion, ° -0.21 EX -1.13 -
Pavilion,notch. 0.1, Negligible 0.3