Illustrated report for brilliant

Polished Brilliant
Brilliant
16.04.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 2.40, 2.4024
Measurements 8.612 (8.588-8.641) x 5.303 / 0.003 (mm)
Spread -0.04ct, -1.85 %
AGS Spread -0.05 ct, -1.99%
Extra Facet Girdle / Nat 1 (1/0)
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
8.588 mm 8.641 mm 1.006 8.588 mm 8.641 mm 8.612 mm 5.303 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.310 mm 3.704 mm 4.814 mm 0.031 mm 0.289 mm 0.329 mm 0.166 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 8.612 8.588 8.641 0.62% - EX
Radius, mm 4.304 4.292 4.327 0.035% – –
Crown angle, ° 34.69 34.59 34.75 0.16 EX EX
Pavilion angle, ° 40.81 40.65 40.91 0.26 EX EX
Total height, % 61.57 – – – - –
Crown height, % 15.21 14.96 15.31 0.35 - EX
Crown height bone, % 14.69 14.43 14.99 0.56 – –
Pavilion height, % 43.00 42.70 43.36 0.66 – –
Pavilion upperbone, % 43.07 42.74 43.36 0.62 – –
Table, % 55.89 55.67 56.11 0.44 EX EX
Culet, % 0.36 0.29 0.39 0.10 EX -
Girdle height bezel, % 3.36 2.94 3.63 0.69 EX EX
Girdle height bone, % 3.82 3.64 4.06 0.42 – -
Girdle height 1.93 1.66 2.19 0.53 - -
valley, %
Star: 47.74: 46.98: 48.68: 1.71 EX EX
Upper ratio, % 52.26 53.02 51.32
Star angle, ° 21.32 20.63 21.74 1.10 – EX
Upper girdle 39.59 38.83 40.24 1.41 – EX
angle, °
Length girdle 77.83 76.72 78.86 2.14 EX EX
facet, %
Lower girdle angle / 41.99 41.79 42.21 0.42 – EX
Halves angle, °
Facet Twist, ° 0.53 0.21 0.89 0.68 – -
Crown height, mm 1.310 1.289 1.319 0.030 - EX
Pavilion height, mm 3.704 3.677 3.734 0.057 – –
Table, mm 4.814 4.795 4.833 0.038 EX EX
Culet, mm 0.031 0.025 0.034 0.009 EX -
Girdle height bezel, mm 0.289 0.253 0.313 0.059 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.69 34.64 34.74 0.09 – –
Pavilion angle, ° 40.81 40.74 40.87 0.13 – –
Fish eye effect, ° 8.85 – – – - –
Culet through Crown Bezel, ° 9.08 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.32 0.12 0.05 0.40 -0.05 -0.31 -0.18 -0.25
Crown azimuths dev. from ideal 0.65 0.61 -0.15 -0.46 -0.48 -0.05 0.72 0.52
Crown painting 1.59 0.59 2.05 1.91 1.56 1.87 2.82 2.39
2.91 1.41 1.82 1.02 3.11 1.55 2.52 2.05
Pavilion painting -0.60 0.16 -0.08 0.09 -0.10 -0.29 0.20 -0.65
-0.02 0.12 -0.37 -0.38 0.01 -0.44 -0.12 -0.38
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.39 ± 0.17 % 0.034 ± 0.015 mm EX
Girdle-Table offset by table axis 0.12 ± 0.15 % 0.011 ± 0.013 mm EX
Table-Culet offset by table axis 0.52 ± 0.19 % 0.045 ± 0.016 mm EX
Girdle to table-culet line offset 0.52 % 0.045 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 8.604 8.610 8.626 8.602 – – – –
Radius, mm 4.296 4.307 4.309 4.298 4.306 4.302 4.317 4.303
Crown angle, ° 34.66 34.68 34.75 34.74 34.74 34.60 34.59 34.74
Pavilion angle, ° 40.89 40.82 40.65 40.83 40.82 40.75 40.84 40.91
Total height, % – – – – – – – –
Crown height, % 15.31 15.31 15.21 15.18 15.27 14.96 15.15 15.28
Crown height bone, % 14.99 14.87 14.83 14.43 14.49 14.56 14.66 14.66
Pavilion height, % 42.70 42.74 42.73 43.07 43.36 43.19 43.27 42.99
Pavilion upperbone, % 42.80 42.74 42.99 43.26 43.36 43.28 43.27 42.85
Table, % 55.67 56.05 56.11 55.74 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.56 3.52 3.63 3.33 2.94 3.41 3.15 3.31
Girdle height bone, % 3.78 3.96 3.75 3.89 3.73 3.73 3.64 4.06
Girdle height 2.08 1.90 2.18 2.17 2.19 1.73 1.78 1.66
valley, % 1.78 1.98 2.06 1.79 1.77 1.95 1.90 1.99
Star: 47.78: 46.98: 47.75: 48.00: 47.23: 47.76: 47.72: 48.68:
Upper ratio, % 52.22 53.02 52.25 52.00 52.77 52.24 52.28 51.32
Star angle, ° 21.37 21.74 21.43 21.26 21.07 20.63 21.56 21.48
Upper girdle 39.72 40.24 39.63 39.80 39.84 39.68 39.07 39.16
angle, ° 39.26 39.70 39.59 40.00 38.83 39.55 39.62 39.78
Length girdle 78.26 77.78 77.52 77.48 77.39 78.71 78.86 78.28
facet, % 77.14 77.52 77.72 78.18 78.40 78.10 77.20 76.72
Lower girdle angle / 42.05 42.03 41.91 41.82 41.79 41.93 41.96 42.01
Halves angle, ° 42.03 41.97 41.90 41.99 41.94 42.06 42.19 42.21
Facet Twist, ° 0.32 0.48 0.21 0.87 0.44 0.25 0.89 0.77
Crown height, mm 1.319 1.318 1.310 1.307 1.315 1.289 1.305 1.316
Pavilion height, mm 3.677 3.681 3.680 3.709 3.734 3.720 3.727 3.702
Table, mm 4.795 4.827 4.833 4.801 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.307 0.304 0.313 0.287 0.253 0.294 0.271 0.285
 
Measurement as per OctoNus theory:
Crown angle, ° 34.70 34.64 34.67 34.74 – – – –
Pavilion angle, ° 40.85 40.79 40.74 40.87 – – – –
MIC, mm 8.586 Extra Facet Crown No –
Girdle to MIC, mm 0.003 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 1.95 Painting EX 3.11 -
Crown,notch. 0.5, Small 0.8
Pavilion, ° -0.18 EX -0.65 -
Pavilion,notch. 0.0, Negligible 0.2