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 4.05, 4.0512
Measurements 10.198 (10.165-10.233) x 6.316 / 0.004 (mm)
Spread -0.13ct, -3.41 %
AGS Spread -0.14 ct, -3.56%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
10.165 mm 10.233 mm 1.007 10.165 mm 10.233 mm 10.198 mm 6.316 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.563 mm 4.371 mm 5.709 mm 0.030 mm 0.382 mm 0.413 mm 0.229 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 10.198 10.165 10.233 0.67% - EX
Radius, mm 5.097 5.076 5.117 0.041% – –
Crown angle, ° 34.84 34.66 35.02 0.36 EX EX
Pavilion angle, ° 40.68 40.46 40.81 0.35 EX EX
Total height, % 61.93 – – – - –
Crown height, % 15.33 15.04 15.56 0.52 - EX
Crown height bone, % 15.12 14.79 15.42 0.62 – –
Pavilion height, % 42.86 42.65 43.12 0.47 – –
Pavilion upperbone, % 42.77 42.49 43.00 0.51 – –
Table, % 55.98 55.67 56.12 0.45 EX EX
Culet, % 0.29 0.23 0.34 0.11 EX -
Girdle height bezel, % 3.75 3.34 4.08 0.74 EX EX
Girdle height bone, % 4.05 3.64 4.48 0.84 – -
Girdle height 2.25 1.85 2.60 0.75 - -
valley, %
Star: 48.26: 47.67: 48.99: 1.32 EX EX
Upper ratio, % 51.74 52.33 51.01
Star angle, ° 21.79 21.54 22.11 0.57 – EX
Upper girdle 40.67 39.33 41.80 2.47 – EX
angle, °
Length girdle 78.66 77.66 79.56 1.90 EX EX
facet, %
Lower girdle angle / 41.77 41.58 41.98 0.40 – EX
Halves angle, °
Facet Twist, ° 0.31 0.03 0.60 0.57 – -
Crown height, mm 1.563 1.534 1.586 0.053 - EX
Pavilion height, mm 4.371 4.349 4.397 0.048 – –
Table, mm 5.709 5.678 5.723 0.045 EX EX
Culet, mm 0.030 0.024 0.035 0.011 EX -
Girdle height bezel, mm 0.382 0.341 0.416 0.075 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.84 34.76 34.98 0.23 – –
Pavilion angle, ° 40.68 40.62 40.75 0.13 – –
Fish eye effect, ° 8.21 – – – - –
Culet through Crown Bezel, ° 8.57 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.11 0.00 -0.20 -0.10 0.00 -0.34 0.44 0.00
Crown azimuths dev. from ideal -0.20 -0.17 0.02 0.04 0.00 0.29 -0.11 0.51
Crown painting 0.09 -1.15 0.81 1.53 2.15 2.49 -0.43 -0.44
1.71 0.46 1.81 1.70 0.27 -1.54 0.40 1.05
Pavilion painting 0.76 0.28 0.15 0.52 -0.32 0.49 0.04 -0.60
0.47 0.49 -0.01 -0.48 0.97 0.19 0.25 -0.29
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.42 ± 0.15 % 0.043 ± 0.015 mm EX
Girdle-Table offset by table axis 0.15 ± 0.13 % 0.016 ± 0.013 mm EX
Table-Culet offset by table axis 0.39 ± 0.17 % 0.040 ± 0.017 mm EX
Girdle to table-culet line offset 0.39 % 0.040 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 10.187 10.189 10.227 10.207 – – – –
Radius, mm 5.098 5.096 5.112 5.105 5.087 5.092 5.114 5.101
Crown angle, ° 34.99 34.66 34.72 34.68 34.98 34.87 35.02 34.84
Pavilion angle, ° 40.78 40.81 40.68 40.71 40.46 40.61 40.58 40.78
Total height, % – – – – – – – –
Crown height, % 15.56 15.14 15.31 15.47 15.38 15.28 15.45 15.04
Crown height bone, % 15.39 14.81 14.79 15.42 14.99 14.94 15.31 15.27
Pavilion height, % 42.65 42.74 42.87 43.12 42.79 43.00 42.88 42.81
Pavilion upperbone, % 42.49 42.64 43.00 42.87 42.86 42.87 42.72 42.71
Table, % 55.67 56.07 56.12 56.06 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.73 4.06 3.76 3.34 3.76 3.65 3.60 4.08
Girdle height bone, % 4.05 4.48 4.14 3.64 4.09 4.12 3.90 3.95
Girdle height 2.40 2.32 2.60 2.48 2.34 1.88 1.85 2.11
valley, % 2.27 1.99 2.28 2.26 2.02 2.34 2.33 2.51
Star: 48.99: 48.27: 47.67: 48.42: 48.06: 48.20: 48.20: 48.30:
Upper ratio, % 51.01 51.73 52.33 51.58 51.94 51.80 51.80 51.70
Star angle, ° 21.93 21.59 21.72 21.80 21.87 21.78 21.54 22.11
Upper girdle 41.19 41.54 40.38 40.09 39.33 39.37 41.11 41.25
angle, ° 40.40 40.72 40.09 40.14 41.35 41.80 41.06 40.88
Length girdle 78.88 79.56 79.34 79.39 78.54 78.72 78.74 78.59
facet, % 78.99 78.24 77.97 78.74 78.47 78.77 77.66 78.03
Lower girdle angle / 41.80 41.92 41.85 41.77 41.74 41.87 41.73 41.60
Halves angle, ° 41.58 41.73 41.69 41.67 41.65 41.77 41.98 41.93
Facet Twist, ° 0.34 0.19 0.19 0.11 0.03 0.60 0.58 0.48
Crown height, mm 1.586 1.544 1.561 1.578 1.568 1.558 1.576 1.534
Pavilion height, mm 4.349 4.358 4.372 4.397 4.364 4.386 4.373 4.366
Table, mm 5.678 5.718 5.723 5.717 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.380 0.414 0.383 0.341 0.384 0.372 0.367 0.416
 
Measurement as per OctoNus theory:
Crown angle, ° 34.98 34.76 34.87 34.76 – – – –
Pavilion angle, ° 40.62 40.71 40.63 40.75 – – – –
MIC, mm 10.161 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, ° 0.68 Painting EX 2.49 -
Crown,notch. 0.2, Very small 0.7
Pavilion, ° 0.18 EX 0.97 -
Pavilion,notch. 0.0, Negligible 0.3