Illustrated report for brilliant

Polished Brilliant
Brilliant
02.12.2025
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.74, 1.7402
Measurements 7.708 (7.694-7.724) x 4.759 / 0.003 (mm)
Spread -0.05ct, -2.91 %
AGS Spread -0.05 ct, -3.05%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
7.694 mm 7.724 mm 1.004 7.694 mm 7.724 mm 7.708 mm 4.759 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.163 mm 3.308 mm 4.343 mm 0.012 mm 0.288 mm 0.278 mm 0.156 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 small errors
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Grade Sym Grade
Diameter, mm 7.708 7.694 7.724 0.39% GD EX
Radius, mm 3.853 3.846 3.864 0.018% – –
Crown angle, ° 34.62 34.45 34.75 0.29 EX EX
Pavilion angle, ° 40.69 40.58 40.77 0.19 EX EX
Total height, % 61.74 – – – VG –
Crown height, % 15.09 14.93 15.22 0.29 EX EX
Crown height bone, % 15.40 15.24 15.58 0.33 – –
Pavilion height, % 42.91 42.79 43.07 0.27 – –
Pavilion upperbone, % 42.73 42.63 42.86 0.22 – –
Table, % 56.35 56.08 56.79 0.71 EX EX
Culet, % 0.16 0.11 0.21 0.10 EX EX
Girdle height bezel, % 3.74 3.60 4.00 0.41 EX EX
Girdle height bone, % 3.61 3.46 3.79 0.33 – EX
Girdle height 2.02 1.85 2.20 0.35 N/A EX
valley, %
Star: 46.73: 46.02: 47.80: 1.78 EX EX
Upper ratio, % 53.27 53.98 52.20
Star angle, ° 20.99 20.69 21.23 0.53 – EX
Upper girdle 41.48 40.89 42.08 1.19 – VG
angle, °
Length girdle 77.59 76.23 78.76 2.53 EX EX
facet, %
Lower girdle angle / 41.76 41.61 41.87 0.26 – EX
Halves angle, °
Facet Twist, ° 0.33 0.07 0.57 0.50 – EX
Crown height, mm 1.163 1.151 1.173 0.022 EX EX
Pavilion height, mm 3.308 3.299 3.320 0.021 – –
Table, mm 4.343 4.323 4.377 0.055 EX EX
Culet, mm 0.012 0.008 0.016 0.008 EX EX
Girdle height bezel, mm 0.288 0.277 0.308 0.031 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.62 34.60 34.66 0.06 – –
Pavilion angle, ° 40.69 40.64 40.72 0.08 – –
Fish eye effect, ° 8.11 – – – N/A –
Culet through Crown Bezel, ° 9.48 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.61 0.10 0.22 0.32 0.13 0.01 -0.01 -0.62
Crown azimuths dev. from ideal -0.14 0.12 -0.40 0.00 -0.41 0.06 0.13 -0.28
Crown painting -0.07 -1.73 -2.04 -1.10 -1.48 -0.64 -1.50 -1.56
-1.01 -1.11 -1.13 -0.44 -1.22 -0.87 -0.56 -1.07
Pavilion painting -0.17 0.24 0.36 0.44 0.30 0.23 0.29 0.73
0.10 0.71 0.37 1.06 0.20 1.00 -0.31 0.84
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.12 ± 0.19 % 0.009 ± 0.014 mm N/A
Girdle-Table offset by table axis 0.11 ± 0.16 % 0.008 ± 0.013 mm N/A
Table-Culet offset by table axis 0.23 ± 0.20 % 0.017 ± 0.016 mm N/A
Girdle to table-culet line offset 0.23 % 0.017 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 7.703 7.721 7.722 7.704 – – – –
Radius, mm 3.853 3.861 3.861 3.853 3.850 3.859 3.860 3.851
Crown angle, ° 34.64 34.61 34.73 34.75 34.65 34.59 34.59 34.45
Pavilion angle, ° 40.77 40.67 40.66 40.58 40.67 40.76 40.75 40.70
Total height, % – – – – – – – –
Crown height, % 15.22 14.93 15.14 15.17 15.03 15.00 15.12 15.10
Crown height bone, % 15.34 15.56 15.47 15.58 15.24 15.28 15.41 15.31
Pavilion height, % 42.92 42.81 42.95 42.81 42.91 43.07 43.01 42.79
Pavilion upperbone, % 42.75 42.65 42.81 42.63 42.86 42.76 42.73 42.64
Table, % 56.09 56.79 56.43 56.08 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.60 4.00 3.65 3.75 3.80 3.67 3.60 3.84
Girdle height bone, % 3.65 3.54 3.46 3.53 3.64 3.69 3.60 3.79
Girdle height 1.96 2.08 2.19 2.09 1.95 1.97 2.04 1.94
valley, % 2.02 1.99 2.01 1.85 2.04 2.10 2.20 1.95
Star: 47.04: 46.14: 47.80: 46.10: 46.02: 47.16: 46.20: 47.34:
Upper ratio, % 52.96 53.86 52.20 53.90 53.98 52.84 53.80 52.66
Star angle, ° 20.96 21.23 21.13 20.79 20.69 21.12 21.08 20.93
Upper girdle 41.25 41.65 42.08 41.94 41.78 41.59 41.68 41.81
angle, ° 41.45 41.48 41.47 41.18 41.23 41.06 40.89 41.21
Length girdle 76.91 77.86 77.13 77.33 77.88 77.54 78.00 77.85
facet, % 77.81 78.27 77.72 78.76 78.11 76.91 77.15 76.23
Lower girdle angle / 41.87 41.84 41.67 41.74 41.71 41.74 41.61 41.69
Halves angle, ° 41.76 41.82 41.77 41.76 41.76 41.77 41.79 41.85
Facet Twist, ° 0.51 0.07 0.57 0.27 0.50 0.11 0.18 0.40
Crown height, mm 1.173 1.151 1.167 1.169 1.159 1.156 1.166 1.164
Pavilion height, mm 3.309 3.300 3.311 3.300 3.308 3.320 3.316 3.299
Table, mm 4.324 4.377 4.350 4.323 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.277 0.308 0.282 0.289 0.293 0.283 0.278 0.296
 
Measurement as per OctoNus theory:
Crown angle, ° 34.64 34.60 34.66 34.60 – – – –
Pavilion angle, ° 40.72 40.71 40.71 40.64 – – – –
MIC, mm 7.691 Extra Facet Crown No –
Girdle to MIC, mm 0.003 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -1.10 Digging N/A -2.04 EX
Crown,notch. 0.3, Very small 0.5
Pavilion, ° 0.40 Painting N/A 1.06 EX
Pavilion,notch. 0.1, Very small 0.3