Illustrated report for brilliant

Polished Brilliant
Brilliant
10.01.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.87, 1.8767
Measurements 7.930 (7.915-7.980) x 4.874 / 0.012 (mm)
Spread -0.04ct, -2.00 %
AGS Spread -0.04 ct, -2.07%
Extra Facet Girdle / Nat 1 (1/0)
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
7.915 mm 7.980 mm 1.008 7.915 mm 7.980 mm 7.930 mm 4.874 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.191 mm 3.399 mm 4.448 mm 0.026 mm 0.283 mm 0.296 mm 0.154 mm
Appraiser title GIA Facetware.Mfg
Overall cut quality VG
Symmetry appraiser title GIA Facetware.Mfg
Overall symmetry quality VG
Final grade VG
Model building info The model has big errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 7.930 7.915 7.980 0.83% - VG
Radius, mm 3.963 3.947 4.019 0.072% – –
Crown angle, ° 34.43 34.22 34.66 0.43 EX EX
Pavilion angle, ° 40.75 40.55 40.94 0.38 EX EX
Total height, % 61.46 – – – - –
Crown height, % 15.02 14.77 15.37 0.60 - EX
Crown height bone, % 14.86 14.40 15.39 0.99 – –
Pavilion height, % 42.87 42.60 43.05 0.45 – –
Pavilion upperbone, % 42.87 42.65 43.13 0.49 – –
Table, % 56.09 55.94 56.21 0.27 EX EX
Culet, % 0.32 0.28 0.35 0.07 EX -
Girdle height bezel, % 3.57 3.23 3.77 0.54 EX EX
Girdle height bone, % 3.73 3.41 4.01 0.60 – -
Girdle height 1.94 0.68 2.34 1.66 - -
valley, %
Star: 47.95: 47.25: 49.01: 1.76 EX EX
Upper ratio, % 52.05 52.75 50.99
Star angle, ° 21.13 20.82 21.63 0.81 – EX
Upper girdle 40.32 39.50 41.07 1.57 – EX
angle, °
Length girdle 75.75 74.15 77.07 2.92 EX EX
facet, %
Lower girdle angle / 41.97 41.73 42.27 0.53 – EX
Halves angle, °
Facet Twist, ° 0.36 0.01 0.67 0.66 – -
Crown height, mm 1.191 1.171 1.219 0.048 - EX
Pavilion height, mm 3.399 3.378 3.414 0.036 – –
Table, mm 4.448 4.436 4.457 0.022 EX EX
Culet, mm 0.026 0.022 0.028 0.005 EX -
Girdle height bezel, mm 0.283 0.256 0.299 0.043 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.43 34.32 34.55 0.23 – –
Pavilion angle, ° 40.75 40.66 40.81 0.15 – –
Fish eye effect, ° 8.47 – – – - –
Culet through Crown Bezel, ° 9.81 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.32 -0.01 0.01 0.05 -0.05 -0.03 -0.34 -0.20
Crown azimuths dev. from ideal 0.23 -0.31 -0.34 -0.33 0.19 0.00 0.37 0.23
Crown painting 0.58 0.00 0.58 0.39 0.29 1.49 1.04 2.11
0.41 0.27 0.37 0.25 0.70 1.02 -0.58 -0.29
Pavilion painting -0.30 -0.09 0.01 0.06 -0.40 0.07 -0.11 0.11
0.17 -0.73 0.69 -0.26 -0.51 0.21 -0.42 0.55
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.27 ± 0.18 % 0.021 ± 0.015 mm EX
Girdle-Table offset by table axis 0.24 ± 0.16 % 0.019 ± 0.013 mm EX
Table-Culet offset by table axis 0.38 ± 0.20 % 0.030 ± 0.016 mm EX
Girdle to table-culet line offset 0.38 % 0.030 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 7.922 7.945 7.958 7.922 – – – –
Radius, mm 3.964 3.979 3.959 3.960 3.957 3.965 3.976 3.962
Crown angle, ° 34.66 34.42 34.29 34.22 34.45 34.23 34.60 34.54
Pavilion angle, ° 40.84 40.66 40.94 40.89 40.77 40.65 40.66 40.55
Total height, % – – – – – – – –
Crown height, % 15.37 15.08 14.79 14.83 14.77 14.91 15.28 15.15
Crown height bone, % 15.12 14.74 14.65 14.40 14.74 14.87 14.97 15.39
Pavilion height, % 42.86 42.66 42.90 43.05 43.00 42.96 42.91 42.60
Pavilion upperbone, % 42.65 42.71 43.08 43.13 43.04 42.87 42.81 42.66
Table, % 55.94 56.16 56.21 56.04 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.23 3.71 3.77 3.58 3.69 3.59 3.27 3.70
Girdle height bone, % 3.69 4.01 3.73 3.92 3.68 3.72 3.68 3.41
Girdle height 1.61 2.28 2.22 2.34 1.89 2.02 1.89 1.94
valley, % 2.22 2.06 2.08 1.83 0.68 2.22 2.30 1.53
Star: 48.61: 49.01: 48.36: 47.62: 47.77: 47.62: 47.25: 47.37:
Upper ratio, % 51.39 50.99 51.64 52.38 52.23 52.38 52.75 52.63
Star angle, ° 21.63 21.47 20.89 20.82 21.07 20.91 21.18 21.07
Upper girdle 40.65 40.49 40.37 40.48 40.49 39.84 39.65 39.50
angle, ° 40.23 40.21 40.31 40.29 40.67 40.02 40.86 41.07
Length girdle 75.67 76.13 74.65 75.00 75.30 75.89 76.46 75.71
facet, % 75.54 75.42 74.15 76.07 75.53 76.73 76.64 77.07
Lower girdle angle / 42.09 41.82 41.98 42.14 42.27 42.15 42.06 42.02
Halves angle, ° 41.92 41.95 41.82 41.80 42.03 41.74 41.73 42.00
Facet Twist, ° 0.51 0.34 0.39 0.41 0.19 0.01 0.67 0.38
Crown height, mm 1.219 1.196 1.173 1.176 1.171 1.182 1.212 1.202
Pavilion height, mm 3.399 3.383 3.402 3.414 3.410 3.407 3.403 3.378
Table, mm 4.436 4.454 4.457 4.444 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.256 0.294 0.299 0.284 0.293 0.284 0.259 0.294
 
Measurement as per OctoNus theory:
Crown angle, ° 34.55 34.32 34.45 34.38 – – – –
Pavilion angle, ° 40.81 40.66 40.80 40.72 – – – –
MIC, mm 7.902 Extra Facet Crown Yes (1) –
Girdle to MIC, mm 0.012 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 0.54 Painting EX 2.11 -
Crown,notch. 0.1, Very small 0.6
Pavilion, ° -0.06 EX -0.73 -
Pavilion,notch. 0.0, Negligible 0.2