Illustrated report for brilliant

Polished Brilliant
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 3.21, 3.2163
Measurements 9.459 (9.442-9.477) x 5.846 / 0.001 (mm)
Spread -0.09ct, -2.89 %
AGS Spread -0.10 ct, -3.05%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
9.442 mm 9.477 mm 1.004 9.442 mm 9.477 mm 9.459 mm 5.846 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.447 mm 4.056 mm 5.272 mm 0.032 mm 0.343 mm 0.378 mm 0.206 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 9.459 9.442 9.477 0.38% - EX
Radius, mm 4.728 4.718 4.739 0.021% – –
Crown angle, ° 34.76 34.60 34.91 0.31 EX EX
Pavilion angle, ° 40.72 40.63 40.83 0.20 EX EX
Total height, % 61.81 – – – - –
Crown height, % 15.30 15.24 15.39 0.15 - EX
Crown height bone, % 14.96 14.68 15.39 0.71 – –
Pavilion height, % 42.88 42.76 43.14 0.38 – –
Pavilion upperbone, % 42.85 42.75 43.06 0.31 – –
Table, % 55.73 55.62 55.89 0.27 EX EX
Culet, % 0.34 0.23 0.42 0.18 EX -
Girdle height bezel, % 3.62 3.43 3.80 0.37 EX EX
Girdle height bone, % 4.00 3.66 4.37 0.72 – -
Girdle height 2.18 1.83 2.49 0.66 - -
valley, %
Star: 48.31: 47.52: 49.04: 1.52 EX EX
Upper ratio, % 51.69 52.48 50.96
Star angle, ° 21.56 21.25 21.90 0.65 – EX
Upper girdle 40.16 39.50 41.65 2.15 – EX
angle, °
Length girdle 77.91 77.07 78.50 1.43 EX EX
facet, %
Lower girdle angle / 41.84 41.74 41.96 0.22 – EX
Halves angle, °
Facet Twist, ° 0.32 0.01 0.80 0.79 – -
Crown height, mm 1.447 1.442 1.456 0.014 - EX
Pavilion height, mm 4.056 4.044 4.080 0.036 – –
Table, mm 5.272 5.262 5.287 0.025 EX EX
Culet, mm 0.032 0.022 0.039 0.017 EX -
Girdle height bezel, mm 0.343 0.324 0.359 0.035 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.76 34.72 34.80 0.08 – –
Pavilion angle, ° 40.72 40.69 40.78 0.10 – –
Fish eye effect, ° 8.56 – – – - –
Culet through Crown Bezel, ° 8.57 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal -0.13 -0.03 0.37 0.53 0.03 -0.13 -0.26 0.17
Crown azimuths dev. from ideal 0.11 -0.38 0.18 -0.28 -0.23 0.09 -0.25 -0.35
Crown painting 1.70 2.53 0.43 0.95 0.38 1.55 1.80 2.60
0.70 1.38 1.75 1.90 -0.70 0.30 1.44 2.03
Pavilion painting 0.57 -0.08 -0.12 0.00 0.37 -0.35 0.84 0.17
0.21 0.18 0.09 0.24 -0.11 0.11 -0.10 0.47
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.21 ± 0.16 % 0.020 ± 0.015 mm EX
Girdle-Table offset by table axis 0.09 ± 0.14 % 0.008 ± 0.013 mm EX
Table-Culet offset by table axis 0.30 ± 0.17 % 0.028 ± 0.017 mm EX
Girdle to table-culet line offset 0.30 % 0.028 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 9.474 9.452 9.451 9.457 – – – –
Radius, mm 4.735 4.724 4.724 4.726 4.739 4.727 4.726 4.730
Crown angle, ° 34.81 34.91 34.68 34.60 34.63 34.61 34.91 34.88
Pavilion angle, ° 40.72 40.66 40.83 40.75 40.75 40.71 40.74 40.63
Total height, % – – – – – – – –
Crown height, % 15.24 15.28 15.25 15.25 15.34 15.31 15.39 15.34
Crown height bone, % 14.78 15.12 15.04 14.68 14.99 14.86 15.39 14.78
Pavilion height, % 43.14 42.84 42.92 42.76 42.88 42.76 42.87 42.90
Pavilion upperbone, % 43.00 42.91 42.79 42.75 42.75 42.83 42.76 43.06
Table, % 55.89 55.68 55.62 55.73 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 3.43 3.68 3.64 3.80 3.59 3.74 3.54 3.56
Girdle height bone, % 4.03 3.77 3.98 4.37 4.07 4.12 3.66 3.97
Girdle height 2.08 2.33 2.21 1.90 2.11 2.36 2.49 2.27
valley, % 2.30 2.34 2.37 2.12 1.83 2.09 2.01 2.04
Star: 47.99: 48.81: 48.50: 49.04: 47.52: 48.17: 48.68: 47.76:
Upper ratio, % 52.01 51.19 51.50 50.96 52.48 51.83 51.32 52.24
Star angle, ° 21.59 21.39 21.53 21.90 21.60 21.33 21.90 21.25
Upper girdle 39.79 39.64 40.84 40.69 40.44 40.02 39.54 39.50
angle, ° 39.95 39.87 39.62 39.89 41.65 41.25 40.07 39.74
Length girdle 78.50 78.34 77.78 77.92 77.62 77.75 77.07 77.43
facet, % 78.09 77.82 77.54 78.09 78.36 77.92 78.21 78.14
Lower girdle angle / 41.76 41.83 41.83 41.96 41.94 41.86 41.88 41.93
Halves angle, ° 41.79 41.81 41.89 41.92 41.78 41.74 41.80 41.80
Facet Twist, ° 0.24 0.34 0.19 0.80 0.26 0.23 0.01 0.52
Crown height, mm 1.442 1.446 1.443 1.443 1.451 1.448 1.456 1.451
Pavilion height, mm 4.080 4.052 4.059 4.044 4.056 4.045 4.055 4.058
Table, mm 5.287 5.266 5.262 5.271 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.324 0.348 0.344 0.359 0.339 0.353 0.335 0.337
 
Measurement as per OctoNus theory:
Crown angle, ° 34.72 34.76 34.80 34.74 – – – –
Pavilion angle, ° 40.73 40.69 40.78 40.69 – – – –
MIC, mm 9.440 Extra Facet Crown No –
Girdle to MIC, mm 0.001 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° 1.30 Painting EX 2.60 -
Crown,notch. 0.3, Small 0.7
Pavilion, ° 0.15 EX 0.84 -
Pavilion,notch. 0.0, Negligible 0.2