Illustrated report for brilliant

Polished Brilliant
Brilliant
24.04.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 4.07, 4.0694
Measurements 10.275 (10.260-10.292) x 6.291 / 0.012 (mm)
Spread -0.06ct, -1.55 %
AGS Spread -0.07 ct, -1.70%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
10.260 mm 10.292 mm 1.003 10.260 mm 10.292 mm 10.275 mm 6.291 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.527 mm 4.405 mm 5.781 mm 0.032 mm 0.359 mm 0.423 mm 0.218 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 10.275 10.260 10.292 0.31% - EX
Radius, mm 5.136 5.124 5.149 0.026% – –
Crown angle, ° 34.36 34.18 34.56 0.37 EX EX
Pavilion angle, ° 40.72 40.64 40.78 0.14 EX EX
Total height, % 61.22 – – – - –
Crown height, % 14.86 14.72 14.94 0.22 - EX
Crown height bone, % 14.24 13.75 14.68 0.93 – –
Pavilion height, % 42.87 42.69 43.01 0.32 – –
Pavilion upperbone, % 42.86 42.66 43.07 0.41 – –
Table, % 56.26 56.16 56.37 0.21 EX EX
Culet, % 0.31 0.24 0.37 0.13 EX -
Girdle height bezel, % 3.49 3.27 3.81 0.54 EX EX
Girdle height bone, % 4.12 3.71 4.40 0.68 – -
Girdle height 2.12 1.90 2.29 0.39 - -
valley, %
Star: 47.69: 47.01: 48.41: 1.40 EX EX
Upper ratio, % 52.31 52.99 51.59
Star angle, ° 20.78 20.50 21.15 0.64 – EX
Upper girdle 39.04 37.75 40.25 2.50 – EX
angle, °
Length girdle 77.99 76.73 79.13 2.40 EX EX
facet, %
Lower girdle angle / 41.84 41.60 41.95 0.35 – EX
Halves angle, °
Facet Twist, ° 0.29 0.04 0.58 0.55 – -
Crown height, mm 1.527 1.512 1.535 0.023 - EX
Pavilion height, mm 4.405 4.387 4.420 0.033 – –
Table, mm 5.781 5.770 5.792 0.022 EX EX
Culet, mm 0.032 0.024 0.038 0.013 EX -
Girdle height bezel, mm 0.359 0.336 0.392 0.056 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.36 34.29 34.40 0.12 – –
Pavilion angle, ° 40.72 40.70 40.74 0.04 – –
Fish eye effect, ° 8.25 – – – - –
Culet through Crown Bezel, ° 10.32 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.01 0.01 -0.20 0.40 -0.12 0.26 -0.01 -0.21
Crown azimuths dev. from ideal 0.34 0.27 0.39 0.05 0.04 0.02 -0.32 -0.17
Crown painting 0.89 1.69 2.78 2.30 2.76 3.48 0.59 0.38
2.41 2.50 1.83 2.35 2.21 2.49 4.11 5.15
Pavilion painting 0.06 0.27 -0.02 0.45 -0.17 -0.34 0.51 0.41
-0.07 0.02 0.42 0.13 -0.03 0.35 -0.48 0.51
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.16 ± 0.15 % 0.017 ± 0.015 mm EX
Girdle-Table offset by table axis 0.13 ± 0.13 % 0.014 ± 0.013 mm EX
Table-Culet offset by table axis 0.12 ± 0.16 % 0.013 ± 0.017 mm EX
Girdle to table-culet line offset 0.12 % 0.013 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 10.276 10.263 10.279 10.261 – – – –
Radius, mm 5.140 5.124 5.141 5.126 5.135 5.138 5.137 5.133
Crown angle, ° 34.51 34.49 34.22 34.56 34.30 34.25 34.35 34.18
Pavilion angle, ° 40.64 40.71 40.75 40.71 40.78 40.77 40.66 40.73
Total height, % – – – – – – – –
Crown height, % 14.92 14.88 14.83 14.72 14.83 14.90 14.87 14.94
Crown height bone, % 14.50 14.18 14.09 14.68 14.23 14.23 14.27 13.75
Pavilion height, % 42.94 42.82 42.94 42.69 42.84 42.90 42.79 43.01
Pavilion upperbone, % 42.77 42.91 42.90 42.83 42.79 42.66 42.95 43.07
Table, % 56.37 56.16 56.23 56.27 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.36 3.52 3.44 3.81 3.54 3.42 3.56 3.27
Girdle height bone, % 3.95 4.13 4.23 3.71 4.20 4.33 4.00 4.40
Girdle height 2.21 2.10 2.03 2.09 2.24 2.28 2.16 2.01
valley, % 2.09 2.04 2.20 2.29 2.14 1.95 1.90 2.21
Star: 47.62: 48.14: 47.07: 47.31: 47.01: 48.02: 48.41: 47.94:
Upper ratio, % 52.38 51.86 52.93 52.69 52.99 51.98 51.59 52.06
Star angle, ° 20.89 20.72 20.85 20.59 20.57 21.00 21.15 20.50
Upper girdle 39.67 39.63 39.03 38.96 38.68 38.66 40.15 40.25
angle, ° 39.07 38.89 39.07 39.02 39.07 38.89 37.87 37.75
Length girdle 79.13 79.11 78.54 77.96 77.53 77.96 76.81 76.73
facet, % 77.96 78.33 77.43 77.34 77.94 77.50 78.84 78.75
Lower girdle angle / 41.60 41.76 41.85 41.90 41.86 41.89 41.85 41.95
Halves angle, ° 41.91 41.91 41.88 41.78 41.82 41.88 41.89 41.80
Facet Twist, ° 0.35 0.26 0.58 0.36 0.16 0.24 0.31 0.04
Crown height, mm 1.533 1.529 1.524 1.512 1.524 1.531 1.528 1.535
Pavilion height, mm 4.413 4.400 4.413 4.387 4.402 4.408 4.397 4.420
Table, mm 5.792 5.770 5.778 5.782 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.345 0.362 0.354 0.392 0.364 0.351 0.366 0.336
 
Measurement as per OctoNus theory:
Crown angle, ° 34.40 34.37 34.29 34.37 – – – –
Pavilion angle, ° 40.71 40.74 40.70 40.72 – – – –
MIC, mm 10.248 Extra Facet Crown No –
Girdle to MIC, mm 0.012 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 2.37 Painting EX 5.15 -
Crown,notch. 0.6, Small 1.4
Pavilion, ° 0.13 EX 0.51 -
Pavilion,notch. 0.0, Negligible 0.1