Illustrated report for brilliant

Polished Brilliant
Brilliant
25.02.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 4.83, 4.8288
Measurements 10.805 (10.785-10.821) x 6.688 / 0.010 (mm)
Spread -0.17ct, -3.63 %
AGS Spread -0.18 ct, -3.79%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
10.785 mm 10.821 mm 1.003 10.785 mm 10.821 mm 10.805 mm 6.688 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.622 mm 4.634 mm 6.096 mm 0.027 mm 0.432 mm 0.428 mm 0.248 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 10.805 10.785 10.821 0.34% - EX
Radius, mm 5.401 5.388 5.413 0.026% – –
Crown angle, ° 34.57 34.32 34.81 0.49 EX EX
Pavilion angle, ° 40.72 40.62 40.85 0.23 EX EX
Total height, % 61.90 – – – - –
Crown height, % 15.01 14.75 15.15 0.41 - EX
Crown height bone, % 15.05 14.76 15.34 0.58 – –
Pavilion height, % 42.88 42.69 43.14 0.45 – –
Pavilion upperbone, % 42.89 42.68 43.12 0.44 – –
Table, % 56.42 56.27 56.56 0.29 EX EX
Culet, % 0.25 0.23 0.27 0.04 EX -
Girdle height bezel, % 4.00 3.74 4.13 0.38 EX EX
Girdle height bone, % 3.96 3.76 4.18 0.42 – -
Girdle height 2.30 2.08 2.52 0.44 - -
valley, %
Star: 46.52: 45.91: 47.07: 1.16 EX EX
Upper ratio, % 53.48 54.09 52.93
Star angle, ° 20.86 20.37 21.25 0.88 – EX
Upper girdle 40.80 40.19 41.09 0.90 – EX
angle, °
Length girdle 75.79 75.02 76.13 1.10 EX EX
facet, %
Lower girdle angle / 41.94 41.78 42.05 0.27 – EX
Halves angle, °
Facet Twist, ° 0.29 0.15 0.53 0.37 – -
Crown height, mm 1.622 1.593 1.637 0.044 - EX
Pavilion height, mm 4.634 4.612 4.661 0.049 – –
Table, mm 6.096 6.080 6.111 0.031 EX EX
Culet, mm 0.027 0.025 0.029 0.004 EX -
Girdle height bezel, mm 0.432 0.404 0.446 0.041 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.57 34.49 34.72 0.23 – –
Pavilion angle, ° 40.72 40.71 40.75 0.04 – –
Fish eye effect, ° 8.15 – – – - –
Culet through Crown Bezel, ° 9.50 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.10 0.11 -0.01 -0.03 -0.08 -0.04 -0.05 0.05
Crown azimuths dev. from ideal -0.17 -0.23 0.15 0.35 0.45 0.21 0.16 -0.15
Crown painting -0.53 0.55 -0.75 0.95 -0.46 0.20 -0.12 -0.46
-0.50 0.07 -0.48 -0.79 0.64 0.15 0.05 0.35
Pavilion painting -0.12 0.05 0.04 0.09 -0.12 -0.08 -0.02 0.08
-0.09 -0.09 -0.08 0.00 -0.23 0.19 0.02 0.05
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.34 ± 0.14 % 0.037 ± 0.016 mm EX
Girdle-Table offset by table axis 0.33 ± 0.12 % 0.036 ± 0.013 mm EX
Table-Culet offset by table axis 0.63 ± 0.16 % 0.068 ± 0.017 mm EX
Girdle to table-culet line offset 0.63 % 0.068 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 10.797 10.799 10.810 10.808 – – – –
Radius, mm 5.396 5.403 5.405 5.394 5.401 5.396 5.405 5.413
Crown angle, ° 34.52 34.57 34.32 34.62 34.45 34.53 34.74 34.81
Pavilion angle, ° 40.69 40.78 40.80 40.85 40.75 40.64 40.62 40.64
Total height, % – – – – – – – –
Crown height, % 14.75 14.83 14.95 15.11 15.13 15.15 15.15 15.02
Crown height bone, % 14.76 14.84 15.02 15.34 15.23 15.30 15.04 14.86
Pavilion height, % 43.02 43.01 42.86 42.73 42.69 42.70 42.93 43.14
Pavilion upperbone, % 42.96 42.93 42.80 42.79 42.68 42.84 42.98 43.12
Table, % 56.44 56.40 56.27 56.56 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 4.13 4.06 4.09 4.06 4.08 4.05 3.81 3.74
Girdle height bone, % 4.18 4.13 4.08 3.77 3.99 3.76 3.88 3.92
Girdle height 2.52 2.44 2.39 2.45 2.40 2.30 2.16 2.17
valley, % 2.32 2.50 2.13 2.18 2.08 2.23 2.12 2.38
Star: 46.46: 45.91: 46.45: 47.07: 46.30: 46.84: 46.38: 46.75:
Upper ratio, % 53.54 54.09 53.55 52.93 53.70 53.16 53.62 53.25
Star angle, ° 20.37 20.58 20.68 20.94 21.25 20.95 21.08 21.07
Upper girdle 40.94 40.73 40.85 40.19 40.47 40.48 41.03 41.00
angle, ° 40.84 40.68 41.01 41.09 40.85 40.90 41.00 40.81
Length girdle 75.85 75.57 75.82 75.58 75.96 76.12 76.03 75.57
facet, % 75.74 75.66 75.02 75.78 76.02 75.93 76.13 75.84
Lower girdle angle / 41.95 41.95 42.02 41.99 42.01 42.05 42.04 42.00
Halves angle, ° 41.96 41.88 41.91 41.84 41.85 41.78 41.89 41.88
Facet Twist, ° 0.28 0.35 0.15 0.38 0.53 0.25 0.21 0.20
Crown height, mm 1.593 1.603 1.616 1.632 1.635 1.637 1.637 1.623
Pavilion height, mm 4.649 4.647 4.631 4.617 4.612 4.613 4.639 4.661
Table, mm 6.098 6.094 6.080 6.111 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.446 0.438 0.442 0.439 0.441 0.438 0.412 0.404
 
Measurement as per OctoNus theory:
Crown angle, ° 34.49 34.55 34.53 34.72 – – – –
Pavilion angle, ° 40.72 40.71 40.71 40.75 – – – –
MIC, mm 10.775 Extra Facet Crown No –
Girdle to MIC, mm 0.010 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.07 EX 0.95 -
Crown,notch. 0.0, Negligible 0.3
Pavilion, ° -0.02 EX -0.23 -
Pavilion,notch. 0.0, Negligible 0.1