Illustrated report for brilliant

Polished Brilliant
Brilliant
22.04.2026
Model Shadow scan
Expert name N/A
Scale weight, ct N/A
Corrected mass, ct 4.40, 4.4073
Measurements 10.490 (10.473-10.505) x 6.493 / 0.009 (mm)
Spread -0.14ct, -3.36 %
AGS Spread -0.15 ct, -3.51%
Extra Facet Girdle / Nat No
Width Length Ratio (L/W) Diameter Minimum Diameter Maximum Diameter Average Total height
10.473 mm 10.505 mm 1.003 10.473 mm 10.505 mm 10.490 mm 6.493 mm
 
Crown height Pavilion height Table Culet Girdle height
Bezel Bone Valley
1.567 mm 4.516 mm 5.947 mm 0.031 mm 0.410 mm 0.373 mm 0.212 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 10.490 10.473 10.505 0.30% - EX
Radius, mm 5.243 5.228 5.258 0.030% – –
Crown angle, ° 34.63 34.47 34.87 0.40 EX EX
Pavilion angle, ° 40.81 40.68 40.98 0.29 EX EX
Total height, % 61.89 – – – - –
Crown height, % 14.94 14.63 15.08 0.45 - EX
Crown height bone, % 15.30 15.15 15.40 0.25 – –
Pavilion height, % 43.05 42.85 43.20 0.35 – –
Pavilion upperbone, % 43.04 42.95 43.11 0.16 – –
Table, % 56.69 56.60 56.82 0.22 EX EX
Culet, % 0.30 0.25 0.34 0.09 EX -
Girdle height bezel, % 3.91 3.62 4.42 0.80 EX EX
Girdle height bone, % 3.56 3.45 3.72 0.27 – -
Girdle height 2.02 1.76 2.43 0.67 - -
valley, %
Star: 49.11: 48.58: 49.73: 1.15 EX EX
Upper ratio, % 50.89 51.42 50.27
Star angle, ° 21.36 21.01 21.78 0.77 – EX
Upper girdle 42.01 41.37 42.53 1.16 – EX
angle, °
Length girdle 78.22 77.18 79.40 2.22 EX EX
facet, %
Lower girdle angle / 41.95 41.78 42.17 0.39 – EX
Halves angle, °
Facet Twist, ° 0.29 0.05 0.49 0.44 – -
Crown height, mm 1.567 1.535 1.582 0.047 - EX
Pavilion height, mm 4.516 4.495 4.531 0.036 – –
Table, mm 5.947 5.938 5.961 0.023 EX EX
Culet, mm 0.031 0.026 0.035 0.010 EX -
Girdle height bezel, mm 0.410 0.380 0.463 0.084 EX EX
Measurement as per OctoNus theory:
Crown angle, ° 34.63 34.55 34.71 0.16 – –
Pavilion angle, ° 40.81 40.77 40.86 0.08 – –
Fish eye effect, ° 8.38 – – – - –
Culet through Crown Bezel, ° 9.68 – – – - –
Parameter, ° 1 2 3 4 5 6 7 8
Pav. azimuths dev. from ideal 0.34 -0.01 -0.08 -0.33 -0.03 0.03 0.20 0.44
Crown azimuths dev. from ideal 0.47 0.01 0.35 0.13 0.36 -0.15 0.65 0.30
Crown painting -0.93 -1.52 -1.77 -1.39 -1.08 -1.65 -0.67 -1.97
0.01 -0.45 -1.08 -1.65 -1.09 -1.78 -1.04 -0.99
Pavilion painting -0.12 -0.26 -0.22 0.06 -0.01 0.07 -0.20 -0.06
0.02 -0.10 0.07 0.05 -0.05 -0.20 0.08 -0.12
Girdle center Culet center Table center Girdle center mass
Parameter     Sym Grade
Girdle-Culet offset by table axis 0.36 ± 0.15 % 0.038 ± 0.016 mm EX
Girdle-Table offset by table axis 0.15 ± 0.12 % 0.016 ± 0.013 mm EX
Table-Culet offset by table axis 0.24 ± 0.16 % 0.025 ± 0.017 mm EX
Girdle to table-culet line offset 0.24 % 0.025 mm –
Parameter 1 2 3 4 5 6 7 8
Diameter, mm 10.485 10.490 10.501 10.496 – – – –
Radius, mm 5.233 5.244 5.253 5.243 5.251 5.245 5.247 5.252
Crown angle, ° 34.68 34.51 34.87 34.67 34.70 34.59 34.54 34.47
Pavilion angle, ° 40.98 40.87 40.95 40.74 40.69 40.68 40.76 40.81
Total height, % – – – – – – – –
Crown height, % 14.90 14.63 15.08 14.97 15.02 15.03 14.98 14.92
Crown height bone, % 15.21 15.33 15.40 15.28 15.15 15.33 15.33 15.35
Pavilion height, % 42.91 42.85 43.20 43.00 43.15 43.15 43.13 43.00
Pavilion upperbone, % 42.96 43.11 43.03 43.01 43.10 43.07 42.95 43.07
Table, % 56.60 56.82 56.66 56.66 – – – –
Culet, % – – – – – – – –
Girdle height bezel, % 4.09 4.42 3.62 3.93 3.72 3.71 3.79 3.98
Girdle height bone, % 3.72 3.45 3.46 3.61 3.65 3.50 3.61 3.47
Girdle height 2.16 2.43 2.26 1.76 1.86 1.96 2.05 2.00
valley, % 1.96 1.97 1.89 1.83 1.95 2.17 1.95 2.08
Star: 49.73: 48.78: 49.02: 49.39: 49.58: 48.58: 49.07: 48.75:
Upper ratio, % 50.27 51.22 50.98 50.61 50.42 51.42 50.93 51.25
Star angle, ° 21.47 21.21 21.42 21.28 21.69 21.01 21.78 21.03
Upper girdle 41.96 42.14 42.31 42.53 42.33 42.30 41.87 42.26
angle, ° 41.37 41.42 41.77 41.97 41.90 41.96 41.86 42.19
Length girdle 78.07 78.33 77.83 78.20 78.01 77.91 79.40 79.15
facet, % 78.16 78.38 77.18 77.87 78.18 77.74 78.44 78.69
Lower girdle angle / 42.15 42.01 42.05 42.17 42.04 41.92 41.84 41.78
Halves angle, ° 41.82 41.79 41.81 41.87 41.91 41.89 41.99 42.15
Facet Twist, ° 0.16 0.05 0.46 0.49 0.42 0.15 0.48 0.12
Crown height, mm 1.563 1.535 1.582 1.570 1.576 1.577 1.571 1.565
Pavilion height, mm 4.501 4.495 4.531 4.511 4.527 4.527 4.524 4.511
Table, mm 5.938 5.961 5.944 5.944 – – – –
Culet, mm – – – – – – – –
Girdle height bezel, mm 0.429 0.463 0.380 0.412 0.390 0.390 0.397 0.417
 
Measurement as per OctoNus theory:
Crown angle, ° 34.69 34.55 34.71 34.57 – – – –
Pavilion angle, ° 40.83 40.77 40.86 40.78 – – – –
MIC, mm 10.464 Extra Facet Crown No –
Girdle to MIC, mm 0.009 Extra Facet Pavilion No –
Paint / Dig Avg Type Cut Grade Max Dev Sym Grade
Crown, ° -1.19 Digging EX -1.97 -
Crown,notch. 0.3, Small 0.5
Pavilion, ° -0.06 EX -0.26 -
Pavilion,notch. 0.0, Negligible 0.1