Illustrated report for brilliant

Polished Brilliant
Brilliant
04.12.2025
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 2.28, 2.2836
Measurements 8.467 (8.450-8.489) x 5.175 / 0.001 (mm)
Spread -0.04ct, -1.89 %
AGS Spread -0.05 ct, -2.04%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
8.450 mm 8.489 mm 1.005 8.450 mm 8.489 mm 8.467 mm 5.175 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.227 mm 3.634 mm 4.870 mm 0.028 mm 0.315 mm 0.311 mm 0.172 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 8.467 8.450 8.489 0.47% - EX
Radius, mm 4.232 4.225 4.247 0.023% – –
Crown angle, ° 34.25 34.20 34.31 0.10 EX EX
Pavilion angle, ° 40.74 40.62 40.84 0.22 EX EX
Total height, % 61.13 – – – - –
Crown height, % 14.49 14.37 14.63 0.27 - EX
Crown height bone, % 14.58 14.19 14.94 0.75 – –
Pavilion height, % 42.92 42.78 43.14 0.37 – –
Pavilion upperbone, % 42.87 42.65 43.10 0.44 – –
Table, % 57.52 57.30 57.73 0.43 EX EX
Culet, % 0.34 0.27 0.38 0.11 EX -
Girdle height bezel, % 3.72 3.54 3.90 0.36 EX EX
Girdle height bone, % 3.67 3.22 3.84 0.62 – -
Girdle height 2.03 1.65 2.35 0.70 - -
valley, %
Star: 46.62: 45.89: 47.64: 1.75 EX EX
Upper ratio, % 53.38 54.11 52.36
Star angle, ° 20.22 19.73 20.50 0.77 – EX
Upper girdle 40.78 40.22 41.38 1.15 – EX
angle, °
Length girdle 76.37 75.41 77.77 2.36 EX EX
facet, %
Lower girdle angle / 41.94 41.79 42.08 0.30 – EX
Halves angle, °
Facet Twist, ° 0.35 0.06 0.84 0.78 – -
Crown height, mm 1.227 1.216 1.239 0.023 - EX
Pavilion height, mm 3.634 3.622 3.653 0.031 – –
Table, mm 4.870 4.852 4.888 0.036 EX EX
Culet, mm 0.028 0.023 0.032 0.010 EX -
Girdle height bezel, mm 0.315 0.300 0.330 0.030 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.25 34.22 34.29 0.07 – –
Pavilion angle, ° 40.74 40.68 40.81 0.13 – –
Fish eye effect, ° 7.64 – – – - –
Culet through Crown Bezel, ° 11.83 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.19 -0.03 0.03 0.11 0.09 0.10 -0.15 0.35
Crown azimuths dev. from ideal 0.61 -0.25 -0.07 -0.20 0.23 0.14 0.58 -0.14
Crown painting -0.29 0.00 -0.19 0.48 -1.12 -0.55 -1.47 -0.74
-1.49 -0.90 -0.42 -0.47 0.64 -1.02 0.44 -0.08
Pavilion painting -0.31 -0.31 0.18 0.14 -0.33 0.02 -0.12 0.39
-0.25 -0.17 -0.27 0.23 -0.33 -0.41 0.39 0.35
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.13 ± 0.17 % 0.011 ± 0.015 mm EX
Girdle-Table offset by table axis 0.06 ± 0.15 % 0.005 ± 0.013 mm EX
Table-Culet offset by table axis 0.19 ± 0.19 % 0.016 ± 0.016 mm EX
Girdle to table-culet line offset 0.19 % 0.016 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 8.464 8.468 8.483 8.471 – – – –
Radius, mm 4.233 4.232 4.242 4.236 4.231 4.235 4.241 4.235
Crown angle, ° 34.24 34.24 34.28 34.28 34.20 34.24 34.21 34.31
Pavilion angle, ° 40.83 40.62 40.71 40.69 40.80 40.80 40.65 40.84
Total height, % – – – – – – – –
Crown height, % 14.42 14.44 14.63 14.51 14.48 14.62 14.42 14.37
Crown height bone, % 14.62 14.49 14.77 14.68 14.94 14.49 14.46 14.19
Pavilion height, % 43.14 42.79 42.89 42.78 42.86 42.96 42.81 43.10
Pavilion upperbone, % 42.96 42.83 42.78 42.65 42.97 42.87 42.84 43.10
Table, % 57.53 57.30 57.51 57.73 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.56 3.90 3.60 3.84 3.79 3.54 3.90 3.66
Girdle height bone, % 3.55 3.81 3.57 3.79 3.22 3.76 3.83 3.84
Girdle height 1.93 2.11 2.35 1.91 1.98 1.97 2.08 2.22
valley, % 1.75 1.65 1.97 2.20 2.26 2.08 1.97 2.00
Star: 47.64: 46.39: 46.81: 45.89: 45.97: 46.53: 46.48: 47.29:
Upper ratio, % 52.36 53.61 53.19 54.11 54.03 53.47 53.52 52.71
Star angle, ° 20.37 20.50 20.20 20.17 20.29 19.73 20.34 20.14
Upper girdle 40.95 40.87 40.44 40.49 41.17 41.16 41.28 40.92
angle, ° 41.38 41.32 40.52 40.24 40.22 40.81 40.37 40.37
Length girdle 76.76 76.98 75.80 75.41 76.74 76.24 75.71 75.81
facet, % 77.77 77.25 77.04 76.25 75.58 75.42 76.38 76.77
Lower girdle angle / 41.99 41.79 41.83 41.95 41.91 41.91 41.89 41.87
Halves angle, ° 42.08 42.00 42.00 41.81 41.86 41.99 42.08 42.04
Facet Twist, ° 0.84 0.18 0.06 0.27 0.18 0.08 0.77 0.45
Crown height, mm 1.221 1.223 1.239 1.228 1.226 1.238 1.221 1.216
Pavilion height, mm 3.653 3.623 3.632 3.622 3.629 3.638 3.624 3.649
Table, mm 4.871 4.852 4.869 4.888 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.301 0.330 0.305 0.325 0.321 0.300 0.330 0.310
 
Measurement as per OctoNus theory:
Crown angle, ° 34.22 34.24 34.25 34.29 – – – –
Pavilion angle, ° 40.81 40.71 40.68 40.76 – – – –
MIC, mm 8.449 Extra Facet Crown No –
Girdle to MIC, mm 0.001 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.45 Digging EX -1.49 -
Crown,notch. 0.1, Very small 0.4
Pavilion, ° -0.05 EX -0.41 -
Pavilion,notch. 0.0, Negligible 0.1