Illustrated report for brilliant

Polished Brilliant
Brilliant
15.01.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 4.21, 4.2098
Measurements 10.426 (10.399-10.444) x 6.351 / 0.002 (mm)
Spread -0.02ct, -0.57 %
AGS Spread -0.03 ct, -0.72%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
10.399 mm 10.444 mm 1.004 10.399 mm 10.444 mm 10.426 mm 6.351 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.524 mm 4.483 mm 5.934 mm 0.025 mm 0.344 mm 0.364 mm 0.182 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 10.426 10.399 10.444 0.44% - EX
Radius, mm 5.211 5.195 5.232 0.037% – –
Crown angle, ° 34.14 33.88 34.46 0.58 EX EX
Pavilion angle, ° 40.75 40.60 40.93 0.33 EX EX
Total height, % 60.91 – – – - –
Crown height, % 14.62 14.44 14.90 0.46 - EX
Crown height bone, % 14.47 14.34 14.63 0.29 – –
Pavilion height, % 42.99 42.67 43.25 0.58 – –
Pavilion upperbone, % 42.95 42.65 43.23 0.57 – –
Table, % 56.92 56.61 57.10 0.49 EX EX
Culet, % 0.24 0.15 0.31 0.16 EX -
Girdle height bezel, % 3.29 3.00 3.57 0.57 EX EX
Girdle height bone, % 3.49 3.15 3.90 0.75 – -
Girdle height 1.74 1.31 2.22 0.91 - -
valley, %
Star: 46.62: 45.40: 47.79: 2.39 EX EX
Upper ratio, % 53.38 54.60 52.21
Star angle, ° 20.31 19.96 20.96 1.00 – EX
Upper girdle 40.05 39.44 40.50 1.07 – EX
angle, °
Length girdle 76.93 75.63 78.35 2.72 EX EX
facet, %
Lower girdle angle / 41.94 41.71 42.14 0.44 – EX
Halves angle, °
Facet Twist, ° 0.43 0.01 0.87 0.86 – -
Crown height, mm 1.524 1.505 1.553 0.048 - EX
Pavilion height, mm 4.483 4.449 4.510 0.061 – –
Table, mm 5.934 5.902 5.953 0.051 EX EX
Culet, mm 0.025 0.016 0.033 0.016 EX -
Girdle height bezel, mm 0.344 0.312 0.372 0.060 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.14 34.04 34.25 0.21 – –
Pavilion angle, ° 40.75 40.71 40.79 0.08 – –
Fish eye effect, ° 8.05 – – – - –
Culet through Crown Bezel, ° 11.61 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.02 0.40 0.10 -0.03 -0.19 -0.09 0.03 0.17
Crown azimuths dev. from ideal -0.47 -0.50 0.08 -0.75 -0.21 -0.27 0.45 0.92
Crown painting 0.66 0.16 0.31 -0.09 0.41 1.16 0.25 -0.12
-0.06 0.27 -0.01 0.14 -0.12 0.24 1.95 1.01
Pavilion painting 0.17 -0.21 0.39 -0.24 0.48 -0.11 -0.36 -0.03
0.12 0.11 -0.38 0.11 0.22 -0.18 -0.06 -0.26
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.42 ± 0.15 % 0.044 ± 0.015 mm EX
Girdle-Table offset by table axis 0.08 ± 0.12 % 0.008 ± 0.013 mm EX
Table-Culet offset by table axis 0.46 ± 0.16 % 0.048 ± 0.017 mm EX
Girdle to table-culet line offset 0.46 % 0.048 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 10.437 10.414 10.436 10.444 – – – –
Radius, mm 5.212 5.214 5.213 5.221 5.223 5.200 5.221 5.223
Crown angle, ° 34.38 33.94 33.88 34.03 34.05 34.13 34.21 34.46
Pavilion angle, ° 40.78 40.93 40.92 40.80 40.70 40.66 40.60 40.62
Total height, % – – – – – – – –
Crown height, % 14.67 14.51 14.44 14.74 14.58 14.55 14.58 14.90
Crown height bone, % 14.36 14.34 14.44 14.54 14.50 14.42 14.63 14.54
Pavilion height, % 42.67 42.89 43.07 43.18 43.25 43.06 43.04 42.79
Pavilion upperbone, % 42.65 42.92 43.09 43.23 43.03 43.01 42.90 42.73
Table, % 57.08 56.88 57.10 56.61 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.57 3.50 3.40 3.00 3.08 3.30 3.28 3.23
Girdle height bone, % 3.90 3.65 3.38 3.15 3.38 3.48 3.38 3.64
Girdle height 2.22 2.15 1.86 1.87 1.80 1.53 1.31 1.46
valley, % 1.51 1.58 1.67 1.74 1.71 1.86 1.77 1.82
Star: 47.07: 46.51: 47.79: 46.17: 45.40: 47.03: 46.28: 46.71:
Upper ratio, % 52.93 53.49 52.21 53.83 54.60 52.97 53.72 53.29
Star angle, ° 20.30 20.05 20.62 19.96 20.12 20.22 20.28 20.96
Upper girdle 40.04 39.97 40.11 39.91 39.83 39.44 40.07 39.98
angle, ° 40.07 40.33 40.50 40.50 40.27 40.11 39.69 40.03
Length girdle 77.41 76.69 77.13 76.30 77.33 77.20 76.15 75.63
facet, % 76.63 76.22 77.34 77.30 78.25 78.35 76.85 76.07
Lower girdle angle / 41.93 42.10 42.11 42.14 42.06 42.04 42.01 41.96
Halves angle, ° 41.81 41.89 41.82 41.79 41.71 41.71 41.89 42.03
Facet Twist, ° 0.45 0.87 0.01 0.68 0.01 0.15 0.46 0.78
Crown height, mm 1.530 1.513 1.505 1.537 1.520 1.517 1.521 1.553
Pavilion height, mm 4.449 4.472 4.491 4.501 4.510 4.489 4.488 4.461
Table, mm 5.951 5.930 5.953 5.902 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.372 0.365 0.354 0.312 0.321 0.344 0.342 0.337
 
Measurement as per OctoNus theory:
Crown angle, ° 34.21 34.04 34.05 34.25 – – – –
Pavilion angle, ° 40.74 40.79 40.76 40.71 – – – –
MIC, mm 10.397 Extra Facet Crown No –
Girdle to MIC, mm 0.002 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 0.39 Painting EX 1.95 -
Crown,notch. 0.1, Very small 0.5
Pavilion, ° -0.01 EX 0.48 -
Pavilion,notch. 0.0, Negligible 0.1