Illustrated report for brilliant

Polished Brilliant
Brilliant
24.03.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.02, 1.0280
Measurements 6.457 (6.443-6.469) x 3.994 / 0.002 (mm)
Spread -0.03ct, -3.45 %
AGS Spread -0.04 ct, -3.58%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
6.443 mm 6.469 mm 1.004 6.443 mm 6.469 mm 6.457 mm 3.994 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
0.990 mm 2.762 mm 3.613 mm 0.032 mm 0.242 mm 0.270 mm 0.150 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 6.457 6.443 6.469 0.41% - EX
Radius, mm 3.227 3.220 3.237 0.017% – –
Crown angle, ° 34.85 34.75 34.95 0.19 EX EX
Pavilion angle, ° 40.69 40.63 40.85 0.21 EX EX
Total height, % 61.85 – – – - –
Crown height, % 15.32 15.16 15.48 0.32 - EX
Crown height bone, % 14.88 14.58 15.12 0.54 – –
Pavilion height, % 42.77 42.58 42.84 0.26 – –
Pavilion upperbone, % 42.78 42.66 42.98 0.32 – –
Table, % 55.94 55.69 56.30 0.61 EX EX
Culet, % 0.50 0.42 0.56 0.14 EX -
Girdle height bezel, % 3.75 3.53 3.97 0.45 EX EX
Girdle height bone, % 4.19 3.96 4.50 0.55 – -
Girdle height 2.32 2.07 2.63 0.57 - -
valley, %
Star: 50.62: 50.12: 51.74: 1.62 EX EX
Upper ratio, % 49.38 49.88 48.26
Star angle, ° 22.17 21.87 22.64 0.77 – EX
Upper girdle 40.41 39.92 40.85 0.93 – EX
angle, °
Length girdle 77.55 76.13 78.81 2.68 EX EX
facet, %
Lower girdle angle / 41.86 41.69 42.06 0.37 – EX
Halves angle, °
Facet Twist, ° 0.40 0.07 0.71 0.64 – -
Crown height, mm 0.990 0.979 1.000 0.020 - EX
Pavilion height, mm 2.762 2.750 2.766 0.017 – –
Table, mm 3.613 3.596 3.635 0.040 EX EX
Culet, mm 0.032 0.027 0.036 0.009 EX -
Girdle height bezel, mm 0.242 0.228 0.256 0.029 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.85 34.83 34.86 0.02 – –
Pavilion angle, ° 40.69 40.66 40.75 0.08 – –
Fish eye effect, ° 8.29 – – – - –
Culet through Crown Bezel, ° 8.61 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.22 -0.19 -0.13 0.25 0.42 0.00 -0.16 0.44
Crown azimuths dev. from ideal 0.49 0.06 0.13 0.88 0.50 0.41 0.55 0.58
Crown painting 2.44 2.14 0.99 0.90 1.79 1.07 1.43 0.60
2.92 1.40 1.41 1.29 1.39 2.12 1.14 0.64
Pavilion painting -0.91 -0.47 -1.13 0.17 -0.87 0.42 -0.52 0.25
-0.34 0.38 -0.34 0.31 -0.98 -0.20 0.08 0.59
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.18 ± 0.22 % 0.011 ± 0.014 mm EX
Girdle-Table offset by table axis 0.20 ± 0.19 % 0.013 ± 0.012 mm EX
Table-Culet offset by table axis 0.35 ± 0.23 % 0.023 ± 0.015 mm EX
Girdle to table-culet line offset 0.35 % 0.023 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 6.460 6.459 6.464 6.455 – – – –
Radius, mm 3.230 3.228 3.231 3.225 3.230 3.231 3.233 3.228
Crown angle, ° 34.87 34.83 34.87 34.75 34.80 34.88 34.84 34.95
Pavilion angle, ° 40.85 40.65 40.64 40.63 40.65 40.68 40.70 40.73
Total height, % – – – – – – – –
Crown height, % 15.48 15.29 15.38 15.22 15.30 15.16 15.28 15.47
Crown height bone, % 14.91 14.97 14.78 14.99 14.58 14.82 14.86 15.12
Pavilion height, % 42.84 42.58 42.79 42.78 42.82 42.83 42.82 42.73
Pavilion upperbone, % 42.98 42.70 42.81 42.72 42.76 42.85 42.77 42.66
Table, % 55.69 56.30 55.97 55.82 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.53 3.97 3.68 3.85 3.73 3.85 3.75 3.65
Girdle height bone, % 3.96 4.17 4.26 4.14 4.50 4.18 4.22 4.07
Girdle height 2.07 2.37 2.46 2.27 2.19 2.23 2.32 2.35
valley, % 2.27 2.54 2.63 2.23 2.29 2.36 2.15 2.35
Star: 50.62: 50.75: 50.56: 50.20: 51.74: 50.63: 50.30: 50.12:
Upper ratio, % 49.38 49.25 49.44 49.80 48.26 49.37 49.70 49.88
Star angle, ° 22.37 22.00 21.87 22.26 22.64 21.96 22.00 22.26
Upper girdle 39.97 40.05 40.48 40.74 40.36 40.37 40.61 40.49
angle, ° 39.92 40.55 40.61 40.60 40.35 39.99 40.85 40.66
Length girdle 78.81 77.69 78.19 77.89 76.77 77.32 77.78 77.82
facet, % 77.91 76.13 76.27 76.44 77.70 78.04 77.50 78.47
Lower girdle angle / 42.06 41.94 41.82 41.78 41.89 41.75 41.82 41.69
Halves angle, ° 41.86 41.81 41.89 41.91 41.90 41.84 41.93 41.87
Facet Twist, ° 0.70 0.25 0.26 0.63 0.07 0.40 0.71 0.13
Crown height, mm 1.000 0.988 0.993 0.983 0.988 0.979 0.987 0.999
Pavilion height, mm 2.766 2.750 2.763 2.762 2.765 2.766 2.765 2.759
Table, mm 3.596 3.635 3.614 3.605 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.228 0.256 0.238 0.248 0.241 0.249 0.242 0.235
 
Measurement as per OctoNus theory:
Crown angle, ° 34.83 34.86 34.86 34.85 – – – –
Pavilion angle, ° 40.75 40.66 40.67 40.68 – – – –
MIC, mm 6.440 Extra Facet Crown No –
Girdle to MIC, mm 0.002 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 1.48 Painting EX 2.92 -
Crown,notch. 0.4, Small 0.8
Pavilion, ° -0.22 EX -1.13 -
Pavilion,notch. 0.1, Negligible 0.3