Illustrated report for brilliant

Polished Brilliant
Brilliant
22.11.2025
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.87, 1.8686
Measurements 7.901 (7.891-7.923) x 4.871 / 0.006 (mm)
Spread -0.05ct, -2.60 %
AGS Spread -0.05 ct, -2.75%
Extra Facet Girdle / Nat 2 (2/0)
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
7.891 mm 7.923 mm 1.004 7.891 mm 7.923 mm 7.901 mm 4.871 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.202 mm 3.382 mm 4.425 mm 0.033 mm 0.287 mm 0.279 mm 0.152 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 big errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 7.901 7.891 7.923 0.40% - EX
Radius, mm 3.949 3.942 3.970 0.028% – –
Crown angle, ° 34.62 34.40 34.78 0.38 EX EX
Pavilion angle, ° 40.69 40.54 40.81 0.27 EX EX
Total height, % 61.65 – – – - –
Crown height, % 15.22 15.13 15.37 0.25 - EX
Crown height bone, % 15.30 14.90 15.46 0.56 – –
Pavilion height, % 42.81 42.68 43.04 0.37 – –
Pavilion upperbone, % 42.82 42.69 42.98 0.29 – –
Table, % 56.00 55.84 56.17 0.32 EX EX
Culet, % 0.42 0.36 0.47 0.11 EX -
Girdle height bezel, % 3.63 3.45 3.85 0.40 EX EX
Girdle height bone, % 3.53 3.37 3.84 0.47 – -
Girdle height 1.93 1.71 2.29 0.58 - -
valley, %
Star: 46.56: 44.98: 47.90: 2.92 EX EX
Upper ratio, % 53.44 55.02 52.10
Star angle, ° 21.16 20.97 21.48 0.50 – EX
Upper girdle 40.99 40.20 41.33 1.12 – EX
angle, °
Length girdle 75.41 74.25 76.71 2.45 EX EX
facet, %
Lower girdle angle / 41.95 41.75 42.07 0.32 – EX
Halves angle, °
Facet Twist, ° 0.23 0.01 0.47 0.45 – -
Crown height, mm 1.202 1.195 1.215 0.019 - EX
Pavilion height, mm 3.382 3.372 3.401 0.029 – –
Table, mm 4.425 4.412 4.438 0.026 EX EX
Culet, mm 0.033 0.029 0.037 0.008 EX -
Girdle height bezel, mm 0.287 0.273 0.304 0.031 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.62 34.55 34.70 0.15 – –
Pavilion angle, ° 40.69 40.62 40.75 0.13 – –
Fish eye effect, ° 8.30 – – – - –
Culet through Crown Bezel, ° 9.23 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.58 0.07 0.10 -0.45 0.07 -0.76 0.04 -0.04
Crown azimuths dev. from ideal -0.35 0.17 0.45 -0.04 0.10 -0.44 -0.41 0.04
Crown painting 0.80 0.76 -1.04 -0.90 0.02 -0.41 -0.74 -0.57
-0.97 0.13 -0.82 0.03 -0.23 -0.74 -0.37 -0.40
Pavilion painting -0.52 -0.29 -0.12 -0.57 0.25 0.35 -0.72 -0.16
-0.28 0.14 -0.81 -0.46 0.11 -0.14 0.36 0.05
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.18 ± 0.18 % 0.014 ± 0.014 mm EX
Girdle-Table offset by table axis 0.10 ± 0.16 % 0.008 ± 0.013 mm EX
Table-Culet offset by table axis 0.11 ± 0.20 % 0.009 ± 0.016 mm EX
Girdle to table-culet line offset 0.11 % 0.009 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 7.902 7.897 7.911 7.908 – – – –
Radius, mm 3.951 3.945 3.957 3.951 3.950 3.951 3.954 3.956
Crown angle, ° 34.53 34.52 34.78 34.71 34.76 34.63 34.63 34.40
Pavilion angle, ° 40.78 40.58 40.54 40.68 40.73 40.74 40.70 40.81
Total height, % – – – – – – – –
Crown height, % 15.16 15.13 15.37 15.36 15.15 15.23 15.19 15.15
Crown height bone, % 14.90 15.46 15.46 15.44 15.37 15.27 15.17 15.31
Pavilion height, % 43.02 42.68 42.79 42.77 42.72 42.76 42.69 43.04
Pavilion upperbone, % 42.91 42.80 42.75 42.78 42.91 42.69 42.76 42.98
Table, % 56.17 55.98 56.03 55.84 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.47 3.85 3.49 3.53 3.79 3.66 3.78 3.45
Girdle height bone, % 3.84 3.39 3.44 3.44 3.37 3.70 3.72 3.37
Girdle height 1.75 2.18 2.02 1.78 1.71 1.90 1.82 1.99
valley, % 2.01 1.76 1.99 2.04 2.29 1.95 1.90 1.71
Star: 47.90: 46.01: 47.42: 44.98: 47.42: 46.14: 46.60: 45.98:
Upper ratio, % 52.10 53.99 52.58 55.02 52.58 53.86 53.40 54.02
Star angle, ° 21.12 21.19 21.48 21.00 21.39 21.18 21.00 20.97
Upper girdle 40.20 40.45 41.33 41.31 41.21 41.16 41.29 41.27
angle, ° 41.12 41.10 41.10 40.76 40.87 40.86 40.88 40.86
Length girdle 75.17 75.33 74.25 75.38 76.71 75.67 74.63 75.47
facet, % 75.66 75.04 75.71 75.91 75.21 76.17 74.86 75.39
Lower girdle angle / 42.07 41.89 41.85 41.82 41.75 41.89 41.98 41.97
Halves angle, ° 41.99 42.07 41.99 41.98 41.88 42.01 42.02 42.06
Facet Twist, ° 0.21 0.08 0.33 0.40 0.01 0.30 0.47 0.07
Crown height, mm 1.198 1.195 1.215 1.213 1.197 1.204 1.200 1.197
Pavilion height, mm 3.399 3.372 3.381 3.379 3.375 3.379 3.373 3.401
Table, mm 4.438 4.423 4.427 4.412 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.274 0.304 0.276 0.279 0.299 0.289 0.299 0.273
 
Measurement as per OctoNus theory:
Crown angle, ° 34.64 34.58 34.70 34.55 – – – –
Pavilion angle, ° 40.75 40.66 40.62 40.74 – – – –
MIC, mm 7.886 Extra Facet Crown No –
Girdle to MIC, mm 0.006 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.34 EX -1.04 -
Crown,notch. 0.1, Negligible 0.3
Pavilion, ° -0.18 EX -0.81 -
Pavilion,notch. 0.0, Negligible 0.2