Illustrated report for brilliant

Polished Brilliant
Brilliant
29.01.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.10, 1.1008
Measurements 6.650 (6.642-6.658) x 4.072 / 0.005 (mm)
Spread -0.02ct, -1.43 %
AGS Spread -0.02 ct, -1.57%
Extra Facet Girdle / Nat 1 (1/0)
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
6.642 mm 6.658 mm 1.002 6.642 mm 6.658 mm 6.650 mm 4.072 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
0.979 mm 2.859 mm 3.766 mm 0.028 mm 0.234 mm 0.226 mm 0.117 mm
Appraiser title Lexus_Opt_12FEB2011
Overall cut quality N/A
Symmetry appraiser title Symmetry
Overall symmetry quality VG
Final grade N/A
Model building info The model has big errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 6.650 6.642 6.658 0.24% GD EX
Radius, mm 3.323 3.318 3.335 0.017% – –
Crown angle, ° 34.23 34.00 34.45 0.45 EX EX
Pavilion angle, ° 40.82 40.70 40.97 0.28 EX EX
Total height, % 61.24 – – – EX –
Crown height, % 14.73 14.58 14.95 0.36 EX EX
Crown height bone, % 14.83 14.53 15.05 0.52 – –
Pavilion height, % 43.00 42.87 43.16 0.29 – –
Pavilion upperbone, % 43.01 42.82 43.47 0.65 – –
Table, % 56.63 56.51 56.81 0.30 EX EX
Culet, % 0.41 0.35 0.47 0.12 GD EX
Girdle height bezel, % 3.51 3.33 3.71 0.38 EX EX
Girdle height bone, % 3.39 2.86 3.65 0.80 – VG
Girdle height 1.76 1.23 1.98 0.75 N/A EX
valley, %
Star: 45.89: 45.49: 46.87: 1.38 EX EX
Upper ratio, % 54.11 54.51 53.13
Star angle, ° 20.21 20.08 20.40 0.31 – EX
Upper girdle 40.55 40.35 40.84 0.49 – EX
angle, °
Length girdle 76.73 75.64 78.25 2.61 EX EX
facet, %
Lower girdle angle / 42.02 41.86 42.37 0.51 – EX
Halves angle, °
Facet Twist, ° 0.39 0.02 0.70 0.68 – EX
Crown height, mm 0.979 0.970 0.994 0.024 EX EX
Pavilion height, mm 2.859 2.850 2.870 0.019 – –
Table, mm 3.766 3.758 3.778 0.020 EX EX
Culet, mm 0.028 0.023 0.032 0.008 GD EX
Girdle height bezel, mm 0.234 0.222 0.247 0.025 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.23 34.18 34.31 0.13 – –
Pavilion angle, ° 40.82 40.77 40.88 0.11 – –
Fish eye effect, ° 8.49 – – – N/A –
Culet through Crown Bezel, ° 10.87 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.62 0.22 -0.31 0.26 0.27 0.30 0.00 -0.41
Crown azimuths dev. from ideal -0.13 -0.37 -0.10 -0.38 -0.48 0.00 -0.25 -0.43
Crown painting 0.11 0.01 -0.77 -0.23 -0.62 0.05 -1.11 -0.32
-0.68 -1.01 -0.35 0.12 -1.14 -0.04 -0.98 -0.50
Pavilion painting -0.62 -0.43 0.12 0.24 -0.29 -0.31 0.02 0.07
0.18 -0.24 0.00 -0.75 -0.27 0.08 -0.45 0.33
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.09 ± 0.21 % 0.006 ± 0.014 mm N/A
Girdle-Table offset by table axis 0.31 ± 0.19 % 0.020 ± 0.012 mm N/A
Table-Culet offset by table axis 0.38 ± 0.23 % 0.025 ± 0.015 mm N/A
Girdle to table-culet line offset 0.38 % 0.025 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 6.658 6.654 6.649 6.646 – – – –
Radius, mm 3.330 3.324 3.326 3.323 3.327 3.328 3.321 3.323
Crown angle, ° 34.45 34.27 34.19 34.35 34.00 34.14 34.18 34.28
Pavilion angle, ° 40.82 40.78 40.70 40.77 40.81 40.97 40.95 40.77
Total height, % – – – – – – – –
Crown height, % 14.58 14.64 14.78 14.83 14.95 14.73 14.67 14.63
Crown height bone, % 14.53 14.81 14.91 15.05 14.91 14.91 14.79 14.74
Pavilion height, % 43.16 43.04 42.88 42.87 42.96 43.15 43.03 42.89
Pavilion upperbone, % 43.05 42.94 42.82 42.83 42.96 43.47 43.01 43.02
Table, % 56.58 56.81 56.51 56.63 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.50 3.56 3.57 3.54 3.33 3.36 3.53 3.71
Girdle height bone, % 3.65 3.49 3.51 3.36 3.36 2.86 3.43 3.48
Girdle height 1.97 1.85 1.85 1.88 1.85 1.79 1.84 1.72
valley, % 1.62 1.91 1.35 1.23 1.87 1.98 1.90 1.64
Star: 46.87: 46.22: 45.60: 45.75: 45.84: 45.59: 45.71: 45.49:
Upper ratio, % 53.13 53.78 54.40 54.25 54.16 54.41 54.29 54.51
Star angle, ° 20.40 20.24 20.23 20.31 20.14 20.19 20.08 20.12
Upper girdle 40.42 40.58 40.76 40.61 40.35 40.36 40.54 40.48
angle, ° 40.38 40.38 40.72 40.64 40.47 40.45 40.84 40.76
Length girdle 77.83 78.25 76.65 76.64 76.85 76.70 76.26 77.39
facet, % 76.22 77.13 75.64 76.62 76.61 76.47 76.28 76.07
Lower girdle angle / 42.04 41.94 41.97 41.88 41.86 41.92 41.97 41.92
Halves angle, ° 42.02 42.01 42.36 42.37 42.12 41.95 42.00 42.04
Facet Twist, ° 0.53 0.55 0.26 0.60 0.70 0.26 0.21 0.02
Crown height, mm 0.970 0.974 0.983 0.986 0.994 0.980 0.976 0.973
Pavilion height, mm 2.870 2.862 2.852 2.850 2.857 2.869 2.862 2.852
Table, mm 3.762 3.778 3.758 3.766 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.232 0.236 0.237 0.236 0.222 0.223 0.235 0.247
 
Measurement as per OctoNus theory:
Crown angle, ° 34.23 34.21 34.18 34.31 – – – –
Pavilion angle, ° 40.82 40.88 40.82 40.77 – – – –
MIC, mm 6.637 Extra Facet Crown No –
Girdle to MIC, mm 0.005 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.47 Digging N/A -1.14 EX
Crown,notch. 0.1, Very small 0.3
Pavilion, ° -0.15 N/A -0.75 EX
Pavilion,notch. 0.0, Negligible 0.2