Illustrated report for brilliant

Polished Brilliant
Brilliant
28.02.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 4.28, 4.2862
Measurements 10.441 (10.426-10.454) x 6.404 / 0.004 (mm)
Spread -0.08ct, -1.94 %
AGS Spread -0.09 ct, -2.09%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
10.426 mm 10.454 mm 1.003 10.426 mm 10.454 mm 10.441 mm 6.404 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.542 mm 4.484 mm 5.935 mm 0.032 mm 0.378 mm 0.377 mm 0.209 mm
Appraiser title GIA Facetware.Mfg
Overall cut quality EX
Symmetry appraiser title GIA Facetware.Mfg
Overall symmetry quality VG
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 10.441 10.426 10.454 0.27% - EX
Radius, mm 5.219 5.209 5.230 0.020% – –
Crown angle, ° 34.37 34.05 34.67 0.63 EX EX
Pavilion angle, ° 40.75 40.58 40.96 0.38 EX EX
Total height, % 61.34 – – – - –
Crown height, % 14.77 14.51 14.98 0.47 - EX
Crown height bone, % 14.77 14.61 15.12 0.51 – –
Pavilion height, % 42.95 42.79 43.11 0.32 – –
Pavilion upperbone, % 42.96 42.75 43.10 0.35 – –
Table, % 56.84 56.74 57.00 0.26 EX EX
Culet, % 0.31 0.27 0.32 0.05 EX -
Girdle height bezel, % 3.62 3.32 3.86 0.54 EX EX
Girdle height bone, % 3.61 3.11 3.83 0.72 – -
Girdle height 2.00 1.52 2.33 0.81 - -
valley, %
Star: 46.35: 45.26: 46.87: 1.61 EX EX
Upper ratio, % 53.65 54.74 53.13
Star angle, ° 20.44 19.99 20.95 0.97 – EX
Upper girdle 40.53 39.67 41.07 1.40 – EX
angle, °
Length girdle 76.93 76.10 77.53 1.43 EX EX
facet, %
Lower girdle angle / 41.95 41.74 42.22 0.48 – EX
Halves angle, °
Facet Twist, ° 0.35 0.01 1.01 1.00 – -
Crown height, mm 1.542 1.515 1.565 0.049 - EX
Pavilion height, mm 4.484 4.467 4.501 0.034 – –
Table, mm 5.935 5.924 5.951 0.027 EX EX
Culet, mm 0.032 0.029 0.034 0.005 EX -
Girdle height bezel, mm 0.378 0.347 0.403 0.057 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.37 34.32 34.45 0.13 – –
Pavilion angle, ° 40.75 40.71 40.77 0.06 – –
Fish eye effect, ° 8.08 – – – - –
Culet through Crown Bezel, ° 10.76 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.12 0.66 0.12 0.20 0.00 -0.15 -0.16 0.00
Crown azimuths dev. from ideal 0.02 0.50 0.42 0.21 0.19 0.86 0.76 0.02
Crown painting 0.56 -0.79 -0.51 -0.15 -0.40 -0.12 -0.24 -0.08
0.92 -0.59 1.40 -0.52 0.55 -0.80 0.08 -0.17
Pavilion painting 0.03 -0.71 0.35 -0.30 -0.23 0.22 -0.15 -0.16
0.16 0.25 -0.21 -0.16 -0.17 -0.29 -0.37 -0.20
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.45 ± 0.15 % 0.047 ± 0.016 mm EX
Girdle-Table offset by table axis 0.39 ± 0.12 % 0.041 ± 0.013 mm EX
Table-Culet offset by table axis 0.72 ± 0.16 % 0.075 ± 0.017 mm VG
Girdle to table-culet line offset 0.72 % 0.075 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 10.442 10.449 10.447 10.453 – – – –
Radius, mm 5.220 5.225 5.229 5.226 5.221 5.224 5.217 5.228
Crown angle, ° 34.67 34.36 34.46 34.11 34.05 34.28 34.44 34.62
Pavilion angle, ° 40.61 40.70 40.75 40.96 40.93 40.81 40.67 40.58
Total height, % – – – – – – – –
Crown height, % 14.72 14.51 14.69 14.70 14.83 14.82 14.98 14.90
Crown height bone, % 14.61 14.67 14.76 14.73 14.66 14.82 15.12 14.77
Pavilion height, % 42.99 42.97 42.79 42.89 42.89 42.93 42.99 43.11
Pavilion upperbone, % 42.94 42.94 42.75 42.90 42.85 43.08 43.10 43.09
Table, % 56.82 57.00 56.81 56.74 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.62 3.85 3.86 3.74 3.62 3.58 3.36 3.32
Girdle height bone, % 3.79 3.73 3.83 3.71 3.82 3.43 3.11 3.47
Girdle height 2.05 2.27 1.99 2.31 2.33 2.20 2.13 2.13
valley, % 2.00 2.12 1.92 1.74 1.61 1.52 1.70 2.00
Star: 46.73: 46.45: 46.60: 46.59: 46.19: 46.09: 45.26: 46.87:
Upper ratio, % 53.27 53.55 53.40 53.41 53.81 53.91 54.74 53.13
Star angle, ° 20.52 20.36 20.35 20.21 19.99 20.59 20.95 20.52
Upper girdle 40.98 41.07 40.95 40.81 40.71 40.45 40.13 40.12
angle, ° 39.67 40.10 39.87 40.38 40.63 40.92 40.81 40.82
Length girdle 77.18 77.17 76.56 76.52 76.10 77.27 76.70 76.83
facet, % 77.14 76.96 77.53 76.57 77.31 77.31 76.45 77.27
Lower girdle angle / 41.80 41.82 42.02 41.93 42.01 42.06 42.22 42.13
Halves angle, ° 42.12 41.94 42.01 41.93 41.84 41.82 41.81 41.74
Facet Twist, ° 0.14 0.16 0.31 0.01 0.19 1.01 0.92 0.02
Crown height, mm 1.537 1.515 1.533 1.535 1.548 1.548 1.565 1.556
Pavilion height, mm 4.489 4.487 4.467 4.478 4.478 4.483 4.489 4.501
Table, mm 5.932 5.951 5.931 5.924 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.378 0.402 0.403 0.391 0.378 0.374 0.351 0.347
 
Measurement as per OctoNus theory:
Crown angle, ° 34.36 34.32 34.45 34.36 – – – –
Pavilion angle, ° 40.77 40.76 40.71 40.77 – – – –
MIC, mm 10.422 Extra Facet Crown No –
Girdle to MIC, mm 0.004 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.05 EX 1.40 -
Crown,notch. 0.0, Negligible 0.4
Pavilion, ° -0.12 EX -0.71 -
Pavilion,notch. 0.0, Negligible 0.2