Illustrated report for brilliant

Polished Brilliant
Brilliant
01.05.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 4.03, 4.0353
Measurements 10.170 (10.142-10.194) x 6.313 / 0.002 (mm)
Spread -0.15ct, -3.86 %
AGS Spread -0.16 ct, -4.01%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
10.142 mm 10.194 mm 1.005 10.142 mm 10.194 mm 10.170 mm 6.313 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.527 mm 4.381 mm 5.762 mm 0.029 mm 0.405 mm 0.377 mm 0.215 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 10.170 10.142 10.194 0.51% - EX
Radius, mm 5.083 5.065 5.103 0.037% – –
Crown angle, ° 34.81 34.53 35.08 0.55 EX EX
Pavilion angle, ° 40.85 40.75 40.97 0.22 EX EX
Total height, % 62.07 – – – - –
Crown height, % 15.01 14.90 15.18 0.28 - EX
Crown height bone, % 15.28 15.06 15.55 0.48 – –
Pavilion height, % 43.07 42.78 43.44 0.67 – –
Pavilion upperbone, % 43.08 42.87 43.41 0.54 – –
Table, % 56.65 56.57 56.70 0.12 EX EX
Culet, % 0.28 0.25 0.31 0.06 EX -
Girdle height bezel, % 3.99 3.68 4.37 0.69 EX EX
Girdle height bone, % 3.71 3.48 3.93 0.45 – -
Girdle height 2.11 1.73 2.55 0.83 - -
valley, %
Star: 50.42: 49.71: 51.12: 1.41 EX EX
Upper ratio, % 49.58 50.29 48.88
Star angle, ° 21.76 21.24 22.19 0.96 – EX
Upper girdle 42.11 41.47 42.76 1.29 – EX
angle, °
Length girdle 76.82 76.42 77.54 1.13 EX EX
facet, %
Lower girdle angle / 42.03 41.90 42.24 0.34 – EX
Halves angle, °
Facet Twist, ° 0.15 0.00 0.41 0.41 – -
Crown height, mm 1.527 1.516 1.544 0.028 - EX
Pavilion height, mm 4.381 4.351 4.418 0.068 – –
Table, mm 5.762 5.754 5.766 0.013 EX EX
Culet, mm 0.029 0.025 0.031 0.006 EX -
Girdle height bezel, mm 0.405 0.374 0.444 0.070 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.81 34.70 34.94 0.24 – –
Pavilion angle, ° 40.85 40.80 40.93 0.14 – –
Fish eye effect, ° 8.54 – – – - –
Culet through Crown Bezel, ° 9.18 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.03 0.13 0.04 -0.07 -0.15 -0.09 0.07 -0.13
Crown azimuths dev. from ideal -0.02 0.18 0.18 0.06 -0.03 0.32 -0.23 -0.13
Crown painting -0.40 -0.87 -0.33 -0.15 -1.39 -0.93 0.03 -0.78
-0.71 -1.14 -1.00 -1.42 -1.08 -1.81 0.44 -0.92
Pavilion painting -0.28 -0.22 0.22 -0.10 0.03 0.23 0.18 0.01
-0.12 0.15 -0.21 -0.25 0.20 -0.08 -0.01 -0.17
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.30 ± 0.15 % 0.031 ± 0.015 mm EX
Girdle-Table offset by table axis 0.01 ± 0.13 % 0.001 ± 0.013 mm EX
Table-Culet offset by table axis 0.31 ± 0.17 % 0.032 ± 0.017 mm EX
Girdle to table-culet line offset 0.31 % 0.032 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 10.185 10.149 10.178 10.160 – – – –
Radius, mm 5.085 5.076 5.089 5.071 5.098 5.072 5.089 5.087
Crown angle, ° 34.86 34.53 34.67 35.00 34.54 35.08 34.90 34.88
Pavilion angle, ° 40.75 40.97 40.81 40.81 40.95 40.89 40.78 40.82
Total height, % – – – – – – – –
Crown height, % 14.90 14.95 15.01 14.97 15.15 14.93 15.02 15.18
Crown height bone, % 15.11 15.06 15.40 15.24 15.28 15.41 15.55 15.19
Pavilion height, % 43.20 43.44 43.12 42.80 43.08 42.78 42.95 43.20
Pavilion upperbone, % 43.41 43.25 42.94 42.98 42.87 42.88 43.04 43.29
Table, % 56.68 56.65 56.70 56.57 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.96 3.68 3.94 4.30 3.84 4.37 4.09 3.69
Girdle height bone, % 3.55 3.75 3.73 3.85 3.93 3.78 3.48 3.60
Girdle height 2.08 1.80 1.87 2.18 2.10 2.38 2.19 2.10
valley, % 1.95 2.55 2.33 2.43 2.06 1.86 1.73 2.18
Star: 50.21: 49.88: 50.64: 49.71: 51.12: 50.47: 50.23: 51.08:
Upper ratio, % 49.79 50.12 49.36 50.29 48.88 49.53 49.77 48.92
Star angle, ° 22.03 21.45 22.19 21.87 21.24 22.07 21.77 21.45
Upper girdle 41.94 42.01 41.61 41.48 42.38 42.38 41.81 41.47
angle, ° 42.17 42.51 42.76 42.53 42.46 42.64 41.67 41.90
Length girdle 76.80 77.54 77.19 77.13 76.70 76.78 76.42 76.65
facet, % 76.51 76.61 76.88 76.44 76.80 76.80 76.83 77.05
Lower girdle angle / 42.01 42.16 42.12 42.01 41.94 41.90 42.03 42.07
Halves angle, ° 42.24 42.09 42.09 41.97 41.93 41.96 42.06 41.91
Facet Twist, ° 0.05 0.05 0.13 0.13 0.12 0.41 0.30 0.00
Crown height, mm 1.516 1.520 1.526 1.522 1.541 1.518 1.528 1.544
Pavilion height, mm 4.394 4.418 4.386 4.353 4.382 4.351 4.368 4.393
Table, mm 5.765 5.762 5.766 5.754 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.403 0.374 0.401 0.437 0.390 0.444 0.416 0.376
 
Measurement as per OctoNus theory:
Crown angle, ° 34.70 34.81 34.79 34.94 – – – –
Pavilion angle, ° 40.85 40.93 40.80 40.82 – – – –
MIC, mm 10.141 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, ° -0.78 Digging EX -1.81 -
Crown,notch. 0.2, Very small 0.5
Pavilion, ° -0.02 EX -0.28 -
Pavilion,notch. 0.0, Negligible 0.1