Illustrated report for brilliant

Polished Brilliant
Brilliant
30.03.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.19, 1.1920
Measurements 6.833 (6.809-6.854) x 4.180 / 0.005 (mm)
Spread -0.01ct, -1.21 %
AGS Spread -0.02 ct, -1.34%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
6.809 mm 6.854 mm 1.007 6.809 mm 6.854 mm 6.833 mm 4.180 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.006 mm 2.935 mm 3.868 mm 0.030 mm 0.238 mm 0.240 mm 0.124 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 6.833 6.809 6.854 0.65% - EX
Radius, mm 3.415 3.397 3.429 0.031% – –
Crown angle, ° 34.19 33.94 34.34 0.40 EX EX
Pavilion angle, ° 40.83 40.69 40.93 0.24 EX EX
Total height, % 61.17 – – – - –
Crown height, % 14.73 14.55 14.90 0.36 - EX
Crown height bone, % 14.68 14.42 14.88 0.46 – –
Pavilion height, % 42.95 42.75 43.11 0.36 – –
Pavilion upperbone, % 42.97 42.75 43.13 0.37 – –
Table, % 56.60 56.19 56.80 0.62 EX EX
Culet, % 0.44 0.38 0.51 0.13 EX -
Girdle height bezel, % 3.49 3.22 3.87 0.65 EX EX
Girdle height bone, % 3.52 3.28 3.70 0.42 – -
Girdle height 1.81 1.46 2.14 0.67 - -
valley, %
Star: 47.68: 47.01: 48.49: 1.48 EX EX
Upper ratio, % 52.32 52.99 51.51
Star angle, ° 20.88 20.38 21.44 1.07 – EX
Upper girdle 40.27 39.41 40.73 1.32 – EX
angle, °
Length girdle 77.53 76.11 78.32 2.21 EX EX
facet, %
Lower girdle angle / 41.97 41.85 42.13 0.28 – EX
Halves angle, °
Facet Twist, ° 0.24 0.03 0.48 0.44 – -
Crown height, mm 1.006 0.994 1.018 0.024 - EX
Pavilion height, mm 2.935 2.922 2.946 0.025 – –
Table, mm 3.868 3.839 3.882 0.042 EX EX
Culet, mm 0.030 0.026 0.035 0.009 EX -
Girdle height bezel, mm 0.238 0.220 0.264 0.044 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.19 34.13 34.30 0.17 – –
Pavilion angle, ° 40.83 40.76 40.88 0.12 – –
Fish eye effect, ° 8.53 – – – - –
Culet through Crown Bezel, ° 10.97 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.03 -0.16 0.03 0.11 0.01 0.09 0.00 -0.13
Crown azimuths dev. from ideal 0.17 0.13 0.33 0.59 0.15 0.23 -0.03 0.23
Crown painting 1.32 0.40 0.14 0.10 0.18 -0.15 0.64 -0.71
1.00 -0.06 1.21 1.35 -1.03 0.33 -0.31 0.02
Pavilion painting -0.55 0.80 -0.72 0.42 -0.54 -0.21 -0.31 0.20
-0.11 0.03 -0.18 0.21 -0.27 0.47 -0.58 0.45
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.20 ± 0.21 % 0.014 ± 0.014 mm EX
Girdle-Table offset by table axis 0.19 ± 0.18 % 0.013 ± 0.012 mm EX
Table-Culet offset by table axis 0.39 ± 0.22 % 0.027 ± 0.015 mm EX
Girdle to table-culet line offset 0.39 % 0.027 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 6.832 6.840 6.827 6.824 – – – –
Radius, mm 3.410 3.417 3.416 3.403 3.420 3.420 3.409 3.418
Crown angle, ° 34.20 34.20 34.32 34.26 34.14 34.12 33.94 34.34
Pavilion angle, ° 40.88 40.86 40.74 40.69 40.81 40.89 40.93 40.82
Total height, % – – – – – – – –
Crown height, % 14.90 14.68 14.58 14.55 14.85 14.73 14.61 14.90
Crown height bone, % 14.69 14.57 14.55 14.73 14.76 14.42 14.84 14.88
Pavilion height, % 42.88 43.11 42.97 42.75 43.10 43.06 42.85 42.86
Pavilion upperbone, % 43.07 43.01 43.04 42.94 43.13 43.04 42.75 42.78
Table, % 56.19 56.70 56.80 56.72 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.38 3.37 3.61 3.87 3.22 3.37 3.70 3.40
Girdle height bone, % 3.40 3.59 3.57 3.50 3.28 3.70 3.57 3.51
Girdle height 1.57 1.65 1.46 1.98 2.05 1.86 2.14 1.72
valley, % 1.59 1.75 1.62 2.11 1.87 1.77 1.97 1.83
Star: 48.49: 47.86: 48.33: 47.67: 47.17: 47.01: 47.82: 47.07:
Upper ratio, % 51.51 52.14 51.67 52.33 52.83 52.99 52.18 52.93
Star angle, ° 21.44 20.92 20.38 21.11 20.81 20.88 20.65 20.82
Upper girdle 39.71 40.06 40.47 40.69 40.57 40.58 40.56 40.56
angle, ° 40.11 40.12 39.64 39.41 40.73 40.34 40.44 40.27
Length girdle 78.16 77.80 78.18 77.65 77.90 77.91 77.13 77.85
facet, % 78.32 77.19 77.66 76.93 76.11 76.35 77.62 77.69
Lower girdle angle / 42.02 41.92 42.01 41.88 41.88 41.88 41.90 41.85
Halves angle, ° 41.99 41.97 42.12 42.13 42.08 41.99 41.98 41.98
Facet Twist, ° 0.20 0.29 0.30 0.48 0.15 0.14 0.03 0.36
Crown height, mm 1.018 1.003 0.997 0.994 1.015 1.007 0.998 1.018
Pavilion height, mm 2.930 2.946 2.936 2.922 2.945 2.943 2.928 2.929
Table, mm 3.839 3.875 3.882 3.876 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.231 0.230 0.247 0.264 0.220 0.230 0.253 0.233
 
Measurement as per OctoNus theory:
Crown angle, ° 34.17 34.16 34.13 34.30 – – – –
Pavilion angle, ° 40.84 40.88 40.83 40.76 – – – –
MIC, mm 6.804 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, ° 0.28 EX 1.35 -
Crown,notch. 0.1, Negligible 0.4
Pavilion, ° -0.05 EX 0.80 -
Pavilion,notch. 0.0, Negligible 0.2