Illustrated report for brilliant

Polished Brilliant
Brilliant
19.02.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.23, 1.2302
Measurements 6.875 (6.866-6.881) x 4.217 / 0.004 (mm)
Spread -0.03ct, -2.58 %
AGS Spread -0.03 ct, -2.72%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
6.866 mm 6.881 mm 1.002 6.866 mm 6.881 mm 6.875 mm 4.217 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
0.996 mm 2.954 mm 3.941 mm 0.030 mm 0.266 mm 0.286 mm 0.162 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 6.875 6.866 6.881 0.22% - EX
Radius, mm 3.436 3.431 3.444 0.014% – –
Crown angle, ° 34.21 34.11 34.33 0.22 EX EX
Pavilion angle, ° 40.83 40.77 40.97 0.20 EX EX
Total height, % 61.34 – – – - –
Crown height, % 14.49 14.39 14.58 0.20 - EX
Crown height bone, % 14.26 14.04 14.42 0.38 – –
Pavilion height, % 42.97 42.87 43.25 0.37 – –
Pavilion upperbone, % 42.91 42.78 43.09 0.31 – –
Table, % 57.32 57.22 57.44 0.23 EX EX
Culet, % 0.44 0.36 0.48 0.12 EX -
Girdle height bezel, % 3.87 3.65 4.03 0.39 EX EX
Girdle height bone, % 4.16 3.94 4.25 0.31 – -
Girdle height 2.36 2.14 2.57 0.42 - -
valley, %
Star: 47.01: 45.97: 48.15: 2.17 EX EX
Upper ratio, % 52.99 54.03 51.85
Star angle, ° 20.19 19.88 20.40 0.52 – EX
Upper girdle 39.95 39.27 40.45 1.18 – EX
angle, °
Length girdle 77.25 75.79 78.70 2.91 EX EX
facet, %
Lower girdle angle / 41.97 41.88 42.12 0.24 – EX
Halves angle, °
Facet Twist, ° 0.21 0.06 0.38 0.32 – -
Crown height, mm 0.996 0.989 1.002 0.013 - EX
Pavilion height, mm 2.954 2.947 2.973 0.026 – –
Table, mm 3.941 3.934 3.949 0.015 EX EX
Culet, mm 0.030 0.025 0.033 0.008 EX -
Girdle height bezel, mm 0.266 0.251 0.277 0.027 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.21 34.15 34.27 0.12 – –
Pavilion angle, ° 40.83 40.79 40.90 0.11 – –
Fish eye effect, ° 8.08 – – – - –
Culet through Crown Bezel, ° 11.51 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.01 -0.09 -0.10 -0.01 0.10 0.09 0.18 -0.01
Crown azimuths dev. from ideal 0.09 0.13 0.28 0.27 0.05 -0.12 -0.14 -0.16
Crown painting 0.89 1.06 1.01 0.10 0.50 -0.47 1.06 0.42
0.22 0.36 0.62 0.94 1.01 1.52 1.60 0.67
Pavilion painting 0.11 -0.11 0.14 -0.48 0.14 -0.89 0.11 0.48
0.20 -0.14 0.19 -0.17 0.25 0.06 0.15 0.05
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.08 ± 0.21 % 0.006 ± 0.014 mm EX
Girdle-Table offset by table axis 0.06 ± 0.18 % 0.004 ± 0.012 mm EX
Table-Culet offset by table axis 0.14 ± 0.22 % 0.010 ± 0.015 mm EX
Girdle to table-culet line offset 0.14 % 0.010 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 6.879 6.878 6.875 6.875 – – – –
Radius, mm 3.439 3.438 3.440 3.437 3.440 3.439 3.435 3.438
Crown angle, ° 34.21 34.13 34.18 34.11 34.33 34.25 34.25 34.19
Pavilion angle, ° 40.97 40.81 40.77 40.78 40.82 40.84 40.83 40.79
Total height, % – – – – – – – –
Crown height, % 14.44 14.46 14.39 14.56 14.47 14.58 14.55 14.46
Crown height bone, % 14.20 14.19 14.42 14.31 14.41 14.34 14.18 14.04
Pavilion height, % 43.25 43.00 42.92 42.87 42.90 42.92 42.93 43.00
Pavilion upperbone, % 43.09 42.89 42.97 42.78 42.79 42.82 42.92 43.04
Table, % 57.36 57.22 57.44 57.25 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.65 3.87 4.03 3.90 3.96 3.84 3.85 3.88
Girdle height bone, % 4.05 4.25 3.94 4.25 4.13 4.17 4.24 4.25
Girdle height 2.17 2.38 2.36 2.57 2.41 2.25 2.17 2.51
valley, % 2.51 2.33 2.36 2.34 2.14 2.43 2.47 2.34
Star: 46.35: 48.15: 45.97: 47.36: 47.44: 46.95: 47.73: 46.10:
Upper ratio, % 53.65 51.85 54.03 52.64 52.56 53.05 52.27 53.90
Star angle, ° 19.88 20.32 20.03 20.23 20.34 20.33 20.40 19.96
Upper girdle 39.85 39.58 39.80 40.24 40.05 40.45 39.97 40.02
angle, ° 40.42 40.39 40.12 39.84 39.99 39.49 39.27 39.70
Length girdle 77.39 77.21 75.79 76.26 78.12 78.16 76.11 77.00
facet, % 78.15 78.70 76.68 77.07 76.92 76.47 77.59 78.35
Lower girdle angle / 42.12 41.99 41.97 41.93 41.95 41.98 42.02 41.94
Halves angle, ° 41.88 41.92 41.99 41.94 41.99 41.91 41.96 42.05
Facet Twist, ° 0.10 0.21 0.38 0.27 0.06 0.20 0.33 0.15
Crown height, mm 0.993 0.994 0.989 1.001 0.995 1.002 1.000 0.994
Pavilion height, mm 2.973 2.956 2.950 2.947 2.950 2.950 2.951 2.956
Table, mm 3.943 3.934 3.949 3.936 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.251 0.266 0.277 0.268 0.272 0.264 0.265 0.267
 
Measurement as per OctoNus theory:
Crown angle, ° 34.27 34.19 34.21 34.15 – – – –
Pavilion angle, ° 40.90 40.83 40.80 40.79 – – – –
MIC, mm 6.862 Extra Facet Crown No –
Girdle to MIC, mm 0.004 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 0.72 Painting EX 1.60 -
Crown,notch. 0.2, Very small 0.4
Pavilion, ° 0.01 EX -0.89 -
Pavilion,notch. 0.0, Negligible 0.2