Illustrated report for brilliant

Polished Brilliant
Brilliant
25.12.2025
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 0.30, 0.3027
Measurements 4.363 (4.348-4.377) x 2.600 / 0.005 (mm)
Spread 0.00ct, 1.15 %
AGS Spread 0.00 ct, 1.06%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
4.348 mm 4.377 mm 1.007 4.348 mm 4.377 mm 4.363 mm 2.600 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
0.574 mm 1.880 mm 2.646 mm 0.025 mm 0.146 mm 0.153 mm 0.083 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 4.363 4.348 4.377 0.67% - EX
Radius, mm 2.180 2.170 2.192 0.021% – –
Crown angle, ° 33.66 33.53 33.79 0.26 EX EX
Pavilion angle, ° 40.93 40.72 41.15 0.43 EX EX
Total height, % 59.59 – – – - –
Crown height, % 13.15 12.91 13.40 0.49 - EX
Crown height bone, % 13.04 12.89 13.13 0.25 – –
Pavilion height, % 43.09 42.77 43.40 0.62 – –
Pavilion upperbone, % 43.04 42.76 43.38 0.62 – –
Table, % 60.64 60.18 60.98 0.81 EX EX
Culet, % 0.58 0.41 0.67 0.26 EX -
Girdle height bezel, % 3.35 3.13 3.55 0.42 EX EX
Girdle height bone, % 3.51 3.21 3.82 0.61 – -
Girdle height 1.91 1.44 2.16 0.72 - -
valley, %
Star: 47.22: 45.86: 49.05: 3.18 EX EX
Upper ratio, % 52.78 54.14 50.95
Star angle, ° 18.80 18.46 19.30 0.84 – EX
Upper girdle 40.16 39.46 41.39 1.93 – EX
angle, °
Length girdle 79.28 77.17 81.58 4.41 EX EX
facet, %
Lower girdle angle / 41.98 41.75 42.25 0.50 – EX
Halves angle, °
Facet Twist, ° 0.24 0.02 0.51 0.49 – -
Crown height, mm 0.574 0.563 0.585 0.021 - EX
Pavilion height, mm 1.880 1.866 1.894 0.027 – –
Table, mm 2.646 2.626 2.661 0.035 EX EX
Culet, mm 0.025 0.018 0.029 0.011 EX -
Girdle height bezel, mm 0.146 0.137 0.155 0.018 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 33.66 33.60 33.73 0.13 – –
Pavilion angle, ° 40.93 40.91 40.97 0.06 – –
Fish eye effect, ° 6.62 – – – - –
Culet through Crown Bezel, ° 17.26 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.40 -0.03 0.03 -0.23 -0.76 -0.08 0.08 0.00
Crown azimuths dev. from ideal -0.10 -0.10 -0.13 -0.15 -0.23 -0.09 -0.25 -0.19
Crown painting -0.21 -0.74 0.01 0.60 0.07 0.76 0.95 0.19
1.06 0.95 0.09 0.74 1.27 -0.43 -0.75 -1.13
Pavilion painting 0.59 -0.47 0.25 -0.60 0.44 -0.34 0.15 0.22
-0.50 0.16 0.03 -0.18 0.19 -0.07 0.14 -0.74
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.11 ± 0.30 % 0.005 ± 0.013 mm EX
Girdle-Table offset by table axis 0.31 ± 0.27 % 0.013 ± 0.012 mm EX
Table-Culet offset by table axis 0.20 ± 0.31 % 0.009 ± 0.014 mm EX
Girdle to table-culet line offset 0.20 % 0.009 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 4.374 4.370 4.360 4.369 – – – –
Radius, mm 2.189 2.184 2.180 2.186 2.182 2.184 2.178 2.182
Crown angle, ° 33.62 33.73 33.79 33.75 33.58 33.61 33.68 33.53
Pavilion angle, ° 41.09 41.15 40.99 40.85 40.72 40.79 40.83 40.98
Total height, % – – – – – – – –
Crown height, % 12.95 13.06 13.15 13.35 13.20 13.19 13.40 12.91
Crown height bone, % 13.00 13.01 12.99 13.09 12.89 13.13 13.11 13.10
Pavilion height, % 43.40 43.40 43.09 43.07 42.93 42.91 42.77 43.13
Pavilion upperbone, % 43.38 43.17 42.88 42.98 42.88 42.76 43.04 43.20
Table, % 60.98 60.74 60.18 60.67 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.24 3.13 3.36 3.17 3.46 3.49 3.42 3.55
Girdle height bone, % 3.21 3.41 3.72 3.52 3.82 3.70 3.44 3.29
Girdle height 1.59 1.70 1.66 1.89 1.93 2.10 1.82 2.05
valley, % 1.85 2.16 2.05 2.15 1.92 2.10 2.10 1.44
Star: 49.05: 48.21: 47.06: 45.86: 47.76: 46.58: 46.04: 47.22:
Upper ratio, % 50.95 51.79 52.94 54.14 52.24 53.42 53.96 52.78
Star angle, ° 19.30 19.08 18.72 18.65 18.72 19.00 18.51 18.46
Upper girdle 40.62 40.91 40.72 40.13 40.29 40.12 39.62 39.50
angle, ° 39.55 39.76 39.96 39.46 39.85 39.96 40.77 41.39
Length girdle 80.03 80.17 77.17 78.94 77.52 79.34 78.25 77.57
facet, % 81.58 79.89 78.71 80.23 80.09 79.64 78.41 81.00
Lower girdle angle / 42.12 42.21 42.25 42.10 42.12 41.95 41.86 41.75
Halves angle, ° 41.77 41.83 41.80 41.76 41.95 41.98 42.11 42.19
Facet Twist, ° 0.51 0.08 0.18 0.07 0.51 0.02 0.34 0.20
Crown height, mm 0.565 0.570 0.574 0.582 0.576 0.576 0.585 0.563
Pavilion height, mm 1.894 1.894 1.880 1.879 1.873 1.872 1.866 1.882
Table, mm 2.661 2.650 2.626 2.647 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.142 0.137 0.146 0.138 0.151 0.152 0.149 0.155
 
Measurement as per OctoNus theory:
Crown angle, ° 33.60 33.67 33.73 33.64 – – – –
Pavilion angle, ° 40.91 40.97 40.91 40.91 – – – –
MIC, mm 4.343 Extra Facet Crown No –
Girdle to MIC, mm 0.005 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 0.21 EX 1.27 -
Crown,notch. 0.1, Negligible 0.3
Pavilion, ° -0.05 EX -0.74 -
Pavilion,notch. 0.0, Negligible 0.2