DIAMCALC POLISH REPORT
Brilliant

General information

Model Sample Sarin Model
Expert name Sample Expert Name
Report date 12/09/2006
Real weight, ct 0.86
Calculated weight, ct 0.86, 0.8662
Spread -0.05 ct, -6.74%
Measurements, mm 6.014 (5.999-6.038) x 3.769 / 0.007
Appraiser title AGS_2005
Overall cut quality 3
Overall symmetry quality PR
Extra Facet / Nat No
Girdle to MIC, mm 0.007
 

Average values

Total height, mm 3.769
Crown height, mm 0.862
Pavilion depth, mm 2.586
Table, mm 3.405
Culet, mm 0.041
Girdle Bezel, mm 0.319
Girdle Bone, mm 0.321
Girdle Valley, mm 0.225

 

Parameter

Avg

Min

Max

Dev

Cut

Sym

1

2

3

4

5

6

7

8

Diameter, mm 6.014 5.999 6.038 0.65% N/A EX 6.027 6.017 6.005 6.004        
Crown angle, ° 33.58 33.35 33.70 0.35 N/A EX 33.64 33.70 33.55 33.67 33.35 33.53 33.67 33.55
Pavilion angle, ° 40.89 40.57 41.14 0.58 N/A EX 40.57 40.67 40.84 41.08 41.14 41.08 41.00 40.70
Total height, % 62.66       N/A                  
Crown height, % 14.33 14.00 14.58 0.58 N/A EX 14.36 14.58 14.32 14.32 14.38 14.32 14.34 14.00
Pavilion depth, % 43.00 42.69 43.28 0.59 N/A EX 42.93 42.99 43.06 43.28 43.08 42.99 43.01 42.69
Table, % 56.61 56.25 56.85 0.59 N/A EX 56.55 56.25 56.78 56.85        
Culet, % 0.68 0.54 0.80 0.26 0 EX                
Girdle Bezel, % 5.30 4.91 5.93 1.02 3 EX 5.36 5.10 5.31 4.91 5.21 5.33 5.26 5.93
Girdle Bone, % 5.34 4.76 5.63 0.87   EX 5.18 5.24 4.76 5.52 5.63 5.48 5.39 5.52
Girdle Valley, % 3.74 3.24 4.09 0.85 0 EX 3.73 3.41 3.50 3.59 3.53 3.24 3.71 3.85
3.74 3.87 3.97 3.97 3.75 3.80 4.05 4.09
Star:
Upper ratio, %
54.18: 51.53: 55.60: 4.07     55.60: 55.21: 53.61: 54.59: 51.53: 53.08: 54.98: 54.82:
45.82 48.47 44.40 44.40 44.79 46.39 45.41 48.47 46.92 45.02 45.18
Star angle, ° 21.56 20.82 22.41 1.59   VG 21.92 21.66 22.41 21.48 20.82 21.09 21.53 21.54
Upper girdle angle, ° 40.58 39.55 41.63 2.08   GD 41.11 41.10 41.19 41.06 40.35 40.66 40.04 40.19
39.55 39.70 39.83 40.28 40.26 41.01 41.27 41.63
Lower girdle angle / Halves angle, ° 41.86 41.54 42.19 0.65   EX 41.57 41.59 41.68 41.83 41.88 41.97 42.19 42.11
42.11 42.16 42.04 42.03 41.80 41.69 41.61 41.54
Twist, ° 0.74 0.01 1.66 1.65   EX 0.17 0.01 0.31 0.65 0.55 1.66 1.53 1.09
Crown height, mm 0.862 0.842 0.877 0.035     0.864 0.877 0.861 0.861 0.865 0.861 0.862 0.842
Pavilion depth, mm 2.586 2.568 2.603 0.035     2.582 2.585 2.590 2.603 2.591 2.586 2.587 2.568
Table, mm 3.405 3.383 3.419 0.036 3.401 3.383 3.415 3.419        
Culet, mm 0.041 0.033 0.048 0.016                
Girdle Bezel, mm 0.319 0.295 0.357 0.061 0.323 0.307 0.320 0.295 0.313 0.320 0.316 0.357
Girdle Bone, mm 0.321 0.286 0.339 0.053   0.312 0.315 0.286 0.332 0.339 0.330 0.324 0.332
Girdle Valley, mm 0.225 0.195 0.246 0.051 0.224 0.205 0.211 0.216 0.212 0.195 0.223 0.232
0.225 0.233 0.239 0.239 0.226 0.229 0.243 0.246
Fish eye effect, ° 8.65 N/A                  
Culet through Crown Bezel, ° 10.59 N/A                  

Measurement as per OctoNus theory

Crown angle, ° 33.58 33.50 33.62 0.12     33.50 33.62 33.61 33.61        
Pavilion angle, ° 40.89 40.86 40.92 0.06     40.86 40.87 40.92 40.89        

 

 
Girdle center Culet center Table center

Offset by table axis

Girdle-Culet 0.37 ± 0.20, % 0.023 ± 0.012, mm
Girdle-Table 0.12 ± 0.18, % 0.007 ± 0.011, mm
Table-Culet 0.44 ± 0.22, % 0.026 ± 0.013, mm

Azimuths deviation from ideal

1

2

3

4

5

6

7

8

Pavilion, ° 0.00 -0.47 -0.06 -0.30 -1.28 0.01 0.34 -1.73
Lower girdle facets / Pavilion Halves, ° -0.81 -0.61 -0.49 -0.18 -0.25 -0.25 -0.95 -1.13
-1.16 -0.53 -0.17 -0.15 -1.28 -1.63 -1.39 -1.46
Crown, ° -0.17 -0.47 -0.37 -0.95 -0.74 -1.65 -1.18 -0.64
Upper girdle facets, ° -0.49 -0.33 -0.08 -0.67 -0.80 -0.30 -1.47 0.11
-1.61 -0.31 -1.82 -0.57 -2.10 -0.44 -0.29 -2.06
Star facets, ° 0.32 0.04 0.61 -0.36 -2.41 -1.96 -0.97 -1.27

Paint / Dug

Avg

Max

Type

1

2

3

4

5

6

7

8

Crown painting, ° -0.26 1.89 -0.32 -0.14 0.39 0.29 -0.42 -0.66 -0.52 -0.85
-0.87 -1.34 -0.17 -0.61 -0.92 -0.20 0.35 1.89
Crown painting, notches 0.1, Absent 0.5 0.1 0.0 0.1 0.1 0.1 0.2 0.1 0.2
0.2 0.4 0.0 0.2 0.2 0.1 0.1 0.5
Pavilion painting, ° -0.03 -1.63 -0.81 0.14 -0.02 0.12 -0.19 -0.06 -0.64 -0.16
0.12 0.55 -0.18 0.49 -1.63 -0.10 0.34 1.46
Pavilion painting, notches 0.0, Absent 0.4 0.2 0.0 0.0 0.0 0.1 0.0 0.2 0.0
0.0 0.1 0.0 0.1 0.4 0.0 0.1 0.4

 
Cut parameters description

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