Illustrated report for brilliant

Polished Brilliant
Brilliant
21.01.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.59, 1.5899
Measurements 7.463 (7.444-7.477) x 4.617 / 0.006 (mm)
Spread -0.06ct, -3.59 %
AGS Spread -0.06 ct, -3.73%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
7.444 mm 7.477 mm 1.005 7.444 mm 7.477 mm 7.463 mm 4.617 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.124 mm 3.198 mm 4.227 mm 0.028 mm 0.295 mm 0.285 mm 0.159 mm
Appraiser title Lexus_Opt_12FEB2011
Overall cut quality N/A
Symmetry appraiser title Symmetry
Overall symmetry quality EX
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 7.463 7.444 7.477 0.46% GD EX
Radius, mm 3.730 3.714 3.748 0.034% – –
Crown angle, ° 34.79 34.73 34.86 0.13 EX EX
Pavilion angle, ° 40.74 40.67 40.79 0.12 EX EX
Total height, % 61.86 – – – VG –
Crown height, % 15.05 14.85 15.22 0.38 EX EX
Crown height bone, % 15.19 15.04 15.38 0.33 – –
Pavilion height, % 42.85 42.71 42.95 0.25 – –
Pavilion upperbone, % 42.84 42.67 43.03 0.36 – –
Table, % 56.64 56.51 56.76 0.25 EX EX
Culet, % 0.38 0.25 0.47 0.22 GD EX
Girdle height bezel, % 3.95 3.70 4.23 0.54 EX EX
Girdle height bone, % 3.82 3.45 4.06 0.60 – EX
Girdle height 2.13 1.85 2.44 0.58 N/A EX
valley, %
Star: 45.54: 45.02: 46.35: 1.34 EX EX
Upper ratio, % 54.46 54.98 53.65
Star angle, ° 20.70 20.53 20.98 0.45 – EX
Upper girdle 41.14 40.77 41.56 0.79 – EX
angle, °
Length girdle 75.53 74.59 76.29 1.71 -- EX
facet, %
Lower girdle angle / 41.96 41.81 42.09 0.28 – EX
Halves angle, °
Facet Twist, ° 0.14 0.00 0.31 0.31 – EX
Crown height, mm 1.124 1.108 1.136 0.028 EX EX
Pavilion height, mm 3.198 3.187 3.206 0.018 – –
Table, mm 4.227 4.218 4.236 0.019 EX EX
Culet, mm 0.028 0.019 0.035 0.017 GD EX
Girdle height bezel, mm 0.295 0.276 0.316 0.040 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.79 34.75 34.83 0.09 – –
Pavilion angle, ° 40.74 40.70 40.78 0.07 – –
Fish eye effect, ° 8.08 – – – N/A –
Culet through Crown Bezel, ° 9.41 – – – N/A –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.18 -0.02 0.20 -0.04 -0.08 0.04 0.26 -0.01
Crown azimuths dev. from ideal -0.01 0.20 0.04 0.25 0.06 0.02 0.18 0.03
Crown painting -0.07 -0.61 -0.18 -0.54 -1.16 -0.66 -0.31 -0.37
-0.79 -1.21 0.01 -0.01 -0.05 -0.32 -1.17 -0.55
Pavilion painting 0.20 0.39 -0.30 -0.30 0.29 -0.37 0.07 0.24
-0.17 0.15 0.02 -0.34 0.29 -0.17 0.20 -0.33
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.15 ± 0.19 % 0.011 ± 0.014 mm N/A
Girdle-Table offset by table axis 0.05 ± 0.17 % 0.004 ± 0.013 mm N/A
Table-Culet offset by table axis 0.20 ± 0.21 % 0.015 ± 0.015 mm N/A
Girdle to table-culet line offset 0.20 % 0.015 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 7.473 7.476 7.451 7.451 – – – –
Radius, mm 3.737 3.743 3.714 3.728 3.735 3.732 3.736 3.722
Crown angle, ° 34.80 34.77 34.86 34.79 34.79 34.73 34.81 34.75
Pavilion angle, ° 40.79 40.72 40.78 40.68 40.67 40.68 40.78 40.79
Total height, % – – – – – – – –
Crown height, % 15.20 15.22 14.85 15.07 15.02 15.08 15.08 14.92
Crown height bone, % 15.13 15.38 15.18 15.15 15.29 15.07 15.04 15.31
Pavilion height, % 42.80 42.94 42.80 42.88 42.91 42.85 42.95 42.71
Pavilion upperbone, % 42.67 43.03 42.91 42.84 42.86 42.84 42.84 42.74
Table, % 56.64 56.51 56.76 56.64 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.86 3.70 4.21 3.91 3.93 3.92 3.83 4.23
Girdle height bone, % 4.06 3.45 3.77 3.86 3.71 3.95 3.98 3.81
Girdle height 2.16 2.32 1.98 2.00 2.07 1.85 1.96 2.23
valley, % 2.26 2.06 2.00 2.35 2.13 2.27 2.44 2.05
Star: 45.09: 45.51: 45.02: 45.44: 45.75: 45.34: 45.84: 46.35:
Upper ratio, % 54.91 54.49 54.98 54.56 54.25 54.66 54.16 53.65
Star angle, ° 20.74 20.98 20.53 20.79 20.57 20.61 20.60 20.79
Upper girdle 40.77 40.86 41.15 41.29 41.56 41.16 41.11 41.02
angle, ° 41.03 41.26 41.11 40.84 41.02 41.35 41.36 41.40
Length girdle 74.59 75.96 75.83 75.80 74.73 75.72 74.82 75.94
facet, % 75.45 76.29 75.76 75.79 74.77 75.67 75.53 75.89
Lower girdle angle / 41.98 41.92 41.91 41.94 42.08 41.96 41.95 41.86
Halves angle, ° 41.89 41.81 41.95 41.99 42.09 42.05 41.96 42.03
Facet Twist, ° 0.18 0.24 0.14 0.31 0.15 0.00 0.06 0.05
Crown height, mm 1.134 1.136 1.108 1.124 1.121 1.126 1.125 1.113
Pavilion height, mm 3.194 3.205 3.195 3.200 3.202 3.198 3.206 3.187
Table, mm 4.227 4.218 4.236 4.227 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.288 0.276 0.314 0.292 0.294 0.293 0.286 0.316
 
Measurement as per OctoNus theory:
Crown angle, ° 34.80 34.75 34.83 34.77 – – – –
Pavilion angle, ° 40.73 40.70 40.78 40.73 – – – –
MIC, mm 7.438 Extra Facet Crown No –
Girdle to MIC, mm 0.006 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -0.50 Digging N/A -1.21 EX
Crown,notch. 0.1, Very small 0.3
Pavilion, ° -0.01 N/A 0.39 EX
Pavilion,notch. 0.0, Negligible 0.1