Illustrated report for brilliant

Polished Brilliant
Brilliant
13.03.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 3.97, 3.9711
Measurements 10.212 (10.180-10.242) x 6.241 / 0.001 (mm)
Spread -0.04ct, -0.95 %
AGS Spread -0.04 ct, -1.10%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
10.180 mm 10.242 mm 1.006 10.180 mm 10.242 mm 10.212 mm 6.241 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.522 mm 4.381 mm 5.736 mm 0.031 mm 0.338 mm 0.374 mm 0.193 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 10.212 10.180 10.242 0.62% - EX
Radius, mm 5.104 5.087 5.124 0.038% – –
Crown angle, ° 34.22 33.94 34.36 0.43 EX EX
Pavilion angle, ° 40.72 40.60 40.85 0.25 EX EX
Total height, % 61.12 – – – - –
Crown height, % 14.90 14.75 15.23 0.47 - EX
Crown height bone, % 14.48 14.27 14.67 0.39 – –
Pavilion height, % 42.90 42.65 43.18 0.52 – –
Pavilion upperbone, % 42.97 42.70 43.22 0.52 – –
Table, % 56.17 55.96 56.53 0.57 EX EX
Culet, % 0.30 0.25 0.34 0.09 EX -
Girdle height bezel, % 3.31 2.99 3.51 0.52 EX EX
Girdle height bone, % 3.67 3.46 3.78 0.32 – -
Girdle height 1.89 1.67 2.14 0.47 - -
valley, %
Star: 49.65: 49.17: 50.23: 1.06 EX EX
Upper ratio, % 50.35 50.83 49.77
Star angle, ° 21.48 21.16 22.14 0.98 – EX
Upper girdle 39.63 39.15 40.44 1.29 – EX
angle, °
Length girdle 76.35 75.63 77.56 1.93 EX EX
facet, %
Lower girdle angle / 41.95 41.76 42.07 0.31 – EX
Halves angle, °
Facet Twist, ° 0.18 0.00 0.34 0.34 – -
Crown height, mm 1.522 1.507 1.555 0.048 - EX
Pavilion height, mm 4.381 4.356 4.409 0.053 – –
Table, mm 5.736 5.715 5.773 0.058 EX EX
Culet, mm 0.031 0.025 0.034 0.009 EX -
Girdle height bezel, mm 0.338 0.305 0.359 0.053 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.22 34.15 34.28 0.14 – –
Pavilion angle, ° 40.72 40.66 40.82 0.16 – –
Fish eye effect, ° 8.36 – – – - –
Culet through Crown Bezel, ° 10.54 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.23 0.04 0.00 0.02 -0.04 -0.03 0.19 0.25
Crown azimuths dev. from ideal 0.37 -0.23 -0.36 -0.05 0.20 -0.05 0.29 0.45
Crown painting 1.79 1.92 0.95 0.24 1.31 1.07 2.05 1.29
2.23 2.25 1.79 1.22 2.30 1.60 2.20 1.64
Pavilion painting -0.17 0.28 -0.24 0.04 -0.35 -0.67 -0.52 -0.28
-0.19 0.41 0.00 -0.28 -0.19 -0.74 0.33 -0.20
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.34 ± 0.15 % 0.035 ± 0.015 mm EX
Girdle-Table offset by table axis 0.32 ± 0.13 % 0.033 ± 0.013 mm EX
Table-Culet offset by table axis 0.66 ± 0.17 % 0.067 ± 0.017 mm EX
Girdle to table-culet line offset 0.66 % 0.067 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 10.239 10.198 10.197 10.219 – – – –
Radius, mm 5.124 5.101 5.097 5.112 5.114 5.097 5.099 5.106
Crown angle, ° 33.94 34.23 34.18 34.15 34.36 34.34 34.36 34.22
Pavilion angle, ° 40.80 40.75 40.85 40.60 40.66 40.62 40.80 40.73
Total height, % – – – – – – – –
Crown height, % 15.23 14.95 14.84 14.75 14.82 14.79 14.98 14.87
Crown height bone, % 14.67 14.66 14.51 14.31 14.27 14.46 14.40 14.57
Pavilion height, % 42.90 42.65 42.93 42.93 43.18 42.90 43.00 42.75
Pavilion upperbone, % 42.77 42.70 43.15 43.22 43.06 42.97 43.05 42.84
Table, % 55.96 56.20 55.99 56.53 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 2.99 3.51 3.35 3.44 3.12 3.43 3.14 3.50
Girdle height bone, % 3.68 3.76 3.46 3.59 3.78 3.69 3.67 3.71
Girdle height 1.68 2.14 2.13 1.94 1.79 1.80 1.95 1.72
valley, % 1.76 1.94 2.14 1.67 1.79 2.04 2.03 1.73
Star: 50.23: 49.22: 49.45: 49.91: 50.17: 49.85: 49.21: 49.17:
Upper ratio, % 49.77 50.78 50.55 50.09 49.83 50.15 50.79 50.83
Star angle, ° 22.14 21.27 21.16 21.59 21.83 21.30 21.22 21.32
Upper girdle 39.32 39.40 39.98 40.44 39.87 39.90 39.46 39.91
angle, ° 39.53 39.39 39.64 40.16 39.28 39.41 39.15 39.24
Length girdle 76.54 76.30 76.01 76.19 77.00 76.55 76.49 76.66
facet, % 77.56 76.93 75.98 75.71 75.73 76.44 75.85 75.63
Lower girdle angle / 42.02 41.95 41.93 42.05 42.04 41.92 41.89 41.89
Halves angle, ° 41.83 41.76 41.80 42.04 42.07 42.03 41.93 42.05
Facet Twist, ° 0.16 0.25 0.34 0.04 0.27 0.00 0.13 0.23
Crown height, mm 1.555 1.527 1.515 1.507 1.514 1.510 1.530 1.518
Pavilion height, mm 4.381 4.356 4.384 4.384 4.409 4.381 4.391 4.366
Table, mm 5.715 5.739 5.718 5.773 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.305 0.359 0.342 0.351 0.318 0.350 0.321 0.357
 
Measurement as per OctoNus theory:
Crown angle, ° 34.15 34.28 34.27 34.19 – – – –
Pavilion angle, ° 40.73 40.68 40.82 40.66 – – – –
MIC, mm 10.179 Extra Facet Crown No –
Girdle to MIC, mm 0.001 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 1.62 Painting EX 2.30 -
Crown,notch. 0.4, Small 0.6
Pavilion, ° -0.17 EX -0.74 -
Pavilion,notch. 0.0, Negligible 0.2