Illustrated report for brilliant

Polished Brilliant
Brilliant
30.04.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.07, 1.0779
Measurements 6.576 (6.561-6.592) x 4.055 / 0.007 (mm)
Spread -0.03ct, -2.72 %
AGS Spread -0.03 ct, -2.86%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
6.561 mm 6.592 mm 1.005 6.561 mm 6.592 mm 6.576 mm 4.055 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
0.990 mm 2.817 mm 3.688 mm 0.028 mm 0.249 mm 0.238 mm 0.134 mm
Appraiser title GIA Facetware.Mfg
Overall cut quality EX
Symmetry appraiser title GIA Facetware.Mfg
Overall symmetry quality VG
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 6.576 6.561 6.592 0.47% - EX
Radius, mm 3.286 3.276 3.303 0.027% – –
Crown angle, ° 34.56 34.32 34.77 0.44 EX EX
Pavilion angle, ° 40.74 40.59 40.97 0.38 EX EX
Total height, % 61.67 – – – - –
Crown height, % 15.05 14.74 15.51 0.77 - EX
Crown height bone, % 15.16 14.91 15.29 0.38 – –
Pavilion height, % 42.83 42.72 42.96 0.24 – –
Pavilion upperbone, % 42.89 42.72 43.16 0.44 – –
Table, % 56.08 55.80 56.36 0.56 EX EX
Culet, % 0.42 0.30 0.53 0.23 EX -
Girdle height bezel, % 3.79 3.20 4.11 0.92 EX EX
Girdle height bone, % 3.63 3.54 3.78 0.24 – -
Girdle height 2.05 1.69 2.29 0.60 - -
valley, %
Star: 49.59: 48.70: 50.38: 1.68 EX EX
Upper ratio, % 50.41 51.30 49.62
Star angle, ° 21.53 21.13 22.18 1.05 – EX
Upper girdle 41.21 39.49 42.28 2.78 – EX
angle, °
Length girdle 78.62 77.64 79.37 1.73 EX EX
facet, %
Lower girdle angle / 41.86 41.69 42.11 0.41 – EX
Halves angle, °
Facet Twist, ° 0.28 0.01 0.72 0.70 – -
Crown height, mm 0.990 0.970 1.020 0.050 - EX
Pavilion height, mm 2.817 2.809 2.825 0.016 – –
Table, mm 3.688 3.669 3.706 0.037 EX EX
Culet, mm 0.028 0.020 0.035 0.015 EX -
Girdle height bezel, mm 0.249 0.210 0.271 0.060 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.56 34.55 34.61 0.06 – –
Pavilion angle, ° 40.74 40.67 40.81 0.14 – –
Fish eye effect, ° 8.45 – – – - –
Culet through Crown Bezel, ° 9.38 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.09 -0.03 0.03 -0.12 -0.24 -0.18 -0.13 0.17
Crown azimuths dev. from ideal -0.55 0.26 0.19 0.16 0.21 0.30 0.16 0.26
Crown painting 1.82 1.20 -0.13 -1.44 -1.17 -1.44 0.05 -1.99
-1.40 -1.36 -0.12 -1.13 0.59 -0.90 1.46 2.52
Pavilion painting 0.11 -0.54 -0.57 -0.11 0.34 -0.13 0.23 -0.11
0.21 -0.49 0.04 -0.23 0.21 -0.75 0.33 -0.36
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.26 ± 0.21 % 0.017 ± 0.014 mm EX
Girdle-Table offset by table axis 0.53 ± 0.19 % 0.035 ± 0.012 mm VG
Table-Culet offset by table axis 0.33 ± 0.23 % 0.022 ± 0.015 mm EX
Girdle to table-culet line offset 0.33 % 0.022 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 6.571 6.587 6.567 6.572 – – – –
Radius, mm 3.279 3.293 3.277 3.289 3.291 3.293 3.290 3.282
Crown angle, ° 34.49 34.32 34.49 34.68 34.61 34.77 34.72 34.42
Pavilion angle, ° 40.74 40.67 40.97 40.81 40.87 40.66 40.61 40.59
Total height, % – – – – – – – –
Crown height, % 15.51 15.10 14.74 14.98 14.75 15.06 15.13 15.12
Crown height bone, % 14.91 15.20 15.26 15.18 15.17 15.29 15.20 15.05
Pavilion height, % 42.96 42.83 42.81 42.76 42.93 42.72 42.83 42.83
Pavilion upperbone, % 43.16 42.93 42.79 42.84 42.72 42.75 42.91 43.04
Table, % 55.80 56.10 56.36 56.06 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.20 3.75 4.11 3.94 3.99 3.89 3.71 3.72
Girdle height bone, % 3.60 3.54 3.63 3.66 3.78 3.64 3.57 3.59
Girdle height 1.69 1.83 2.22 1.89 2.07 2.21 2.17 2.13
valley, % 2.10 2.25 2.29 2.02 1.99 1.99 2.12 1.77
Star: 49.71: 50.13: 48.70: 50.38: 49.19: 49.25: 49.38: 49.99:
Upper ratio, % 50.29 49.87 51.30 49.62 50.81 50.75 50.62 50.01
Star angle, ° 21.13 21.80 21.37 21.36 21.37 21.50 21.56 22.18
Upper girdle 39.49 39.75 40.99 42.21 41.77 41.97 41.61 42.28
angle, ° 42.23 42.12 41.34 41.68 40.98 41.25 39.95 39.74
Length girdle 78.96 78.84 78.07 78.88 78.55 77.85 78.86 79.37
facet, % 78.72 78.56 77.64 78.45 78.09 78.82 79.19 79.01
Lower girdle angle / 41.87 41.86 41.83 42.11 41.99 41.93 41.86 41.99
Halves angle, ° 41.97 41.87 41.75 41.70 41.76 41.72 41.69 41.87
Facet Twist, ° 0.72 0.22 0.08 0.21 0.38 0.41 0.22 0.01
Crown height, mm 1.020 0.993 0.970 0.985 0.970 0.991 0.995 0.994
Pavilion height, mm 2.825 2.816 2.815 2.812 2.823 2.809 2.816 2.816
Table, mm 3.669 3.689 3.706 3.686 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.210 0.246 0.271 0.259 0.262 0.256 0.244 0.245
 
Measurement as per OctoNus theory:
Crown angle, ° 34.55 34.55 34.61 34.55 – – – –
Pavilion angle, ° 40.81 40.67 40.79 40.70 – – – –
MIC, mm 6.554 Extra Facet Crown No –
Girdle to MIC, mm 0.007 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.22 EX 2.52 -
Crown,notch. 0.1, Negligible 0.7
Pavilion, ° -0.11 EX -0.75 -
Pavilion,notch. 0.0, Negligible 0.2