Illustrated report for brilliant

Polished Brilliant
Brilliant
09.02.2021
Model 16
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 1.00, 1.0036
Measurements 6.341 (6.316-6.353) x 4.014 / 0.007 (mm)
Spread -0.06ct, -6.60 %
AGS Spread -0.06 ct, -6.63%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
6.316 mm 6.353 mm 1.006 6.316 mm 6.353 mm 6.341 mm 4.014 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.059 mm 2.719 mm 3.501 mm 0.012 mm 0.235 mm 0.268 mm 0.143 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 N/A
   
Color
Clarity
Polish
Fluorescence
Parameter Avg Min Max Dev Cut Sym
Diameter,mm 6.341 6.316 6.353 0.58% - EX
Radius,mm 3.168 3.155 3.177 0.022% – –
Crown angle,° 36.70 36.40 37.40 1.00 EX EX
Pavilion angle,° 40.65 40.44 40.94 0.50 EX EX
Total height,% 63.31 – – – - –
Crown height,% 16.71 16.41 17.23 0.82 - EX
Crown height bone,% 16.37 16.01 17.12 1.11 – –
Pavilion height,% 42.89 42.46 43.37 0.91 – –
Pavilion upperbone,% 42.71 42.30 43.34 1.04 – –
Table,% 55.22 54.66 55.63 0.98 EX EX
Culet,% 0.19 0.18 0.20 0.02 EX -
Girdle height bezel,% 3.71 3.10 4.06 0.96 EX EX
Girdle height bone,% 4.23 3.75 4.57 0.82 – -
Girdle height 2.26 1.58 2.54 0.96 - -
valley,%
Star: 57.40: 55.58: 58.55: 2.97 EX EX
Upper ratio,% 42.60 44.42 41.45
Star angle,° 25.36 24.55 26.27 1.72 – EX
Upper girdle 43.58 43.00 44.29 1.30 – EX
angle,°
Length girdle 76.37 75.25 77.25 2.00 EX EX
facet,%
Lower girdle angle / 41.80 41.54 42.27 0.73 – EX
Halves angle,°
Facet Twist,° 0.65 0.05 1.20 1.15 – -
Crown height,mm 1.059 1.041 1.092 0.052 - EX
Pavilion height,mm 2.719 2.692 2.750 0.058 – –
Table,mm 3.501 3.466 3.528 0.062 EX EX
Culet,mm 0.012 0.011 0.013 0.001 EX -
Girdle height bezel,mm 0.235 0.197 0.258 0.061 EX EX
Measurement as per OctoNus theory:
Crown angle,° 36.70 36.54 37.04 0.50 – –
Pavilion angle,° 40.65 40.52 40.77 0.25 – –
Fish eye effect,° 8.45 – – – - –
Culet through Crown Bezel,° 3.28 – – – - –
Parameter,° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.16 -0.02 0.19 0.02 -0.01 -0.16 0.19 -0.20
Crown azimuths dev. from ideal -0.07 -1.22 0.39 0.06 1.18 0.08 1.38 0.69
Crown painting 1.44 0.85 1.36 0.39 0.75 0.24 0.68 1.44
1.44 1.44 1.44 1.12 1.30 1.18 0.24 0.24
Pavilion painting 0.62 -0.17 0.80 -0.17 0.55 0.83 0.52 -0.17
1.02 1.02 1.02 -0.17 0.59 0.23 0.23 0.13
Girdle center Culet center Table center Girdle center mass
Girdle-Culet offset by table axis 0.28 ± 0.12, % 0.018 ± 0.007, mm EX
Girdle-Table offset by table axis 0.46 ± 0.10, % 0.029 ± 0.006, mm EX
Table-Culet offset by table axis 0.68 ± 0.13, % 0.043 ± 0.009, mm EX
Girdle to table-culet line offset 0.68 %, 0.043 mm
Parameter 1 2 3 4 5 6 7 8
Diameter,mm 6.333 6.353 6.353 6.343 – – – –
Radius,mm 3.167 3.175 3.176 3.173 3.164 3.176 3.177 3.167
Crown angle,° 36.68 36.40 36.40 36.56 37.40 36.98 36.68 36.51
Pavilion angle,° 40.60 40.51 40.44 40.75 40.94 40.79 40.60 40.57
Total height,% – – – – – – – –
Crown height,% 17.23 16.59 16.45 16.41 16.84 16.61 16.57 16.97
Crown height bone,% 16.55 16.06 16.26 16.22 16.27 16.01 16.45 17.12
Pavilion height,% 42.60 42.76 42.81 43.31 43.37 43.11 42.68 42.46
Pavilion upperbone,% 42.53 42.68 42.82 43.34 42.83 42.73 42.48 42.30
Table,% 54.66 55.63 55.63 54.95 – – – –
Culet,% – – – – – – – –
Girdle height bezel,% 3.48 3.97 4.04 3.59 3.10 3.59 4.06 3.88
Girdle height bone,% 4.23 4.56 4.24 3.75 4.21 4.57 4.38 3.89
Girdle height 2.22 2.36 2.52 2.53 2.52 2.39 2.01 1.58
valley,% 1.98 2.35 2.33 2.54 2.52 2.45 2.07 1.80
Star: 58.55: 57.39: 58.55: 55.58: 55.58: 58.30: 58.55: 56.71:
Upper ratio,% 41.45 42.61 41.45 44.42 44.42 41.70 41.45 43.29
Star angle,° 26.27 24.55 25.29 24.55 25.46 25.14 26.11 25.47
Upper girdle 43.00 43.18 43.00 43.73 43.82 43.89 43.67 44.19
angle,° 43.53 43.04 43.82 43.59 43.37 43.18 43.95 44.29
Length girdle 75.25 75.25 77.25 77.25 77.25 77.25 76.53 76.53
facet,% 76.41 76.41 77.25 77.25 75.72 75.72 75.25 75.25
Lower girdle angle / 41.72 41.73 41.61 41.62 41.54 41.69 41.99 42.27
Halves angle,° 41.92 41.82 41.84 41.80 41.74 41.73 41.81 41.88
Facet Twist,° 0.22 1.20 0.21 0.05 1.20 0.25 1.20 0.89
Crown height,mm 1.092 1.052 1.043 1.041 1.068 1.053 1.050 1.076
Pavilion height,mm 2.701 2.711 2.715 2.746 2.750 2.734 2.706 2.692
Table,mm 3.466 3.528 3.528 3.484 – – – –
Culet,mm – – – – – – – –
Girdle height bezel,mm 0.220 0.251 0.256 0.228 0.197 0.228 0.258 0.246
 
Measurement as per OctoNus theory:
Crown angle,° 37.04 36.69 36.54 36.54 – – – –
Pavilion angle,° 40.77 40.65 40.52 40.66 – – – –
MIC,mm 6.309 Extra Facet Crown No –
Girdle to MIC,mm 0.007 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Max Dev Sym
Crown,° 0.97 Painting EX 1.44 -
Crown,notch. 0.3, Very small 0.4
Pavilion,° 0.43 Painting EX 1.02 -
Pavilion,notch. 0.1, Very small 0.3