Illustrated report for brilliant

Polished Brilliant
Brilliant
16.03.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 4.05, 4.0572
Measurements 10.231 (10.205-10.251) x 6.294 / 0.015 (mm)
Spread -0.10ct, -2.57 %
AGS Spread -0.11 ct, -2.71%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
10.205 mm 10.251 mm 1.005 10.205 mm 10.251 mm 10.231 mm 6.294 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.497 mm 4.397 mm 5.801 mm 0.031 mm 0.400 mm 0.389 mm 0.226 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 10.231 10.205 10.251 0.45% - EX
Radius, mm 5.114 5.090 5.130 0.040% – –
Crown angle, ° 34.10 33.96 34.18 0.22 EX EX
Pavilion angle, ° 40.80 40.71 40.88 0.17 EX EX
Total height, % 61.52 – – – - –
Crown height, % 14.63 14.41 14.85 0.45 - EX
Crown height bone, % 14.68 14.32 14.91 0.59 – –
Pavilion height, % 42.97 42.77 43.14 0.37 – –
Pavilion upperbone, % 43.03 42.88 43.17 0.29 – –
Table, % 56.69 56.40 56.81 0.41 EX EX
Culet, % 0.30 0.25 0.33 0.08 EX -
Girdle height bezel, % 3.91 3.58 4.20 0.62 EX EX
Girdle height bone, % 3.80 3.60 4.16 0.56 – -
Girdle height 2.21 1.87 2.64 0.77 - -
valley, %
Star: 48.10: 47.57: 48.89: 1.32 EX EX
Upper ratio, % 51.90 52.43 51.11
Star angle, ° 20.79 20.70 20.90 0.19 – EX
Upper girdle 40.43 39.87 41.08 1.21 – EX
angle, °
Length girdle 76.77 75.37 77.51 2.14 EX EX
facet, %
Lower girdle angle / 41.98 41.85 42.17 0.31 – EX
Halves angle, °
Facet Twist, ° 0.18 0.03 0.35 0.31 – -
Crown height, mm 1.497 1.474 1.520 0.046 - EX
Pavilion height, mm 4.397 4.376 4.414 0.037 – –
Table, mm 5.801 5.770 5.813 0.042 EX EX
Culet, mm 0.031 0.026 0.034 0.008 EX -
Girdle height bezel, mm 0.400 0.367 0.430 0.063 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.10 34.05 34.14 0.09 – –
Pavilion angle, ° 40.80 40.74 40.87 0.13 – –
Fish eye effect, ° 8.32 – – – - –
Culet through Crown Bezel, ° 10.89 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.01 -0.03 -0.10 -0.12 0.03 0.12 0.20 0.20
Crown azimuths dev. from ideal 0.34 0.16 0.04 0.15 -0.02 0.05 0.00 -0.03
Crown painting -0.04 -0.03 0.16 -0.37 0.30 0.20 -0.02 0.05
0.15 0.79 -0.12 0.12 -1.06 -0.01 0.06 0.05
Pavilion painting -0.23 0.19 0.05 0.00 -0.13 0.17 -0.16 0.05
-0.09 -0.07 -0.04 0.04 -0.19 0.11 0.00 0.17
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.17 ± 0.15 % 0.017 ± 0.015 mm EX
Girdle-Table offset by table axis 0.35 ± 0.13 % 0.036 ± 0.013 mm EX
Table-Culet offset by table axis 0.37 ± 0.17 % 0.038 ± 0.017 mm EX
Girdle to table-culet line offset 0.37 % 0.038 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 10.208 10.235 10.238 10.225 – – – –
Radius, mm 5.114 5.113 5.119 5.117 5.094 5.120 5.119 5.105
Crown angle, ° 33.96 34.10 34.12 34.18 34.14 34.14 34.09 34.10
Pavilion angle, ° 40.88 40.73 40.79 40.71 40.86 40.75 40.85 40.80
Total height, % – – – – – – – –
Crown height, % 14.85 14.77 14.79 14.65 14.41 14.46 14.54 14.54
Crown height bone, % 14.91 14.80 14.66 14.74 14.32 14.58 14.71 14.75
Pavilion height, % 43.04 42.91 43.14 43.02 43.01 42.94 42.95 42.77
Pavilion upperbone, % 43.01 42.97 43.08 43.17 43.04 43.03 42.88 43.05
Table, % 56.40 56.81 56.76 56.80 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.62 3.83 3.58 3.85 4.09 4.11 4.02 4.20
Girdle height bone, % 3.60 3.74 3.78 3.61 4.16 3.91 3.92 3.72
Girdle height 1.89 2.09 2.28 1.92 1.92 2.29 2.14 2.15
valley, % 2.28 2.64 2.40 2.10 2.39 2.38 2.58 1.87
Star: 47.91: 47.57: 48.08: 48.08: 48.10: 48.89: 47.77: 48.38:
Upper ratio, % 52.09 52.43 51.92 51.92 51.90 51.11 52.23 51.62
Star angle, ° 20.74 20.77 20.89 20.70 20.78 20.90 20.75 20.77
Upper girdle 40.24 40.16 40.14 40.49 40.25 40.24 40.61 40.55
angle, ° 40.38 39.87 40.85 41.08 40.80 40.31 40.53 40.34
Length girdle 75.95 75.37 76.70 76.76 76.53 76.13 77.41 77.51
facet, % 77.25 77.49 76.89 76.77 76.66 77.48 77.18 76.21
Lower girdle angle / 42.04 41.96 41.86 42.00 41.97 41.86 41.89 41.96
Halves angle, ° 42.12 41.85 41.98 42.14 41.94 41.89 42.03 42.17
Facet Twist, ° 0.35 0.21 0.16 0.29 0.03 0.04 0.18 0.21
Crown height, mm 1.520 1.511 1.513 1.499 1.474 1.480 1.488 1.488
Pavilion height, mm 4.404 4.390 4.414 4.401 4.401 4.393 4.395 4.376
Table, mm 5.770 5.813 5.807 5.811 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.370 0.392 0.367 0.394 0.419 0.421 0.411 0.430
 
Measurement as per OctoNus theory:
Crown angle, ° 34.05 34.12 34.11 34.14 – – – –
Pavilion angle, ° 40.87 40.74 40.82 40.75 – – – –
MIC, mm 10.190 Extra Facet Crown No –
Girdle to MIC, mm 0.015 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 0.01 EX -1.06 -
Crown,notch. 0.0, Negligible 0.3
Pavilion, ° -0.01 EX -0.23 -
Pavilion,notch. 0.0, Negligible 0.1