HELIUM POLISH REPORT
Pear

General information


Model Simple
Expert name Makoed A.G.
Report date 01.12.2006
Real weight, ct
Calculated weight, ct 0.3556
Appraiser title AGA
Overall cut quality 3A
Symmetry appraiser title Internal
Overall symmetry quality PR
Measurements (4.126-6.479) x 2.352 mm
Spread 0.10ct, 22.11%
Extra Facet / Nat Yes (1)
   

Average values, mm

Crown height 0.493
Pavilion depth 1.741
Table 3.363
Culet 0.032
Girdle Bezel 0.144
Girdle Bone 0.154
Girdle Valley 0.095

Parameters

Avg

Min

Max

Dev

Cut

Sym

1

2

3

4

5

6

7

8

Diameter, mm   4.126 6.479 Ratio: 1.570 2A                  
Crown mains angle, 31.59 31.49 31.69 0.19 2B EX 31.69 31.49            
Crown nock angle, 24.96 19.52 30.39 10.87     19.52 30.39            
Crown other angle, 31.32 30.88 32.00 1.12     31.35 30.88 32.00 31.04 N/A N/A N/A N/A
Pavilion mains angle, N/A N/A N/A N/A N/A PR N/A N/A            
Pavilion nock angle, N/A N/A N/A N/A     N/A N/A            
Pavilion other angle, 37.49 34.04 40.39 6.36     40.39 35.08 34.04 40.07 39.41 35.55 34.98 40.37
Total height, % 57.01       3A                  
Crown height, % 11.95 10.94 13.10 2.16 2B GD 12.04 11.27 12.19 10.94 11.86 13.10 11.58 12.65
Pavilion depth, % 42.19 41.23 43.20 1.96 N/A GD 41.91 43.20 42.56 42.20 42.54 41.48 42.37 41.23
Table, % 62.81 60.03 65.59 5.56 2B PR                
Upper girdle angle, 36.41 32.87 40.17 7.30   PR 34.53 32.87 35.95 36.75 37.43 36.87 36.09 36.18
36.25 34.60 39.56 37.51 39.52 40.17 34.51 33.69
Star angle, 17.05 13.94 20.77 6.83   PR 17.74 16.52 15.82 18.56 20.77 14.67 13.94 18.41
Lower girdle angle /
Halves angle,
37.82 33.08 41.28 8.21   PR 41.28 39.95 36.58 34.02 33.08 37.32 39.80 40.67
40.23 38.15 35.72 35.91 35.56 36.46 39.27 41.18
Star :
Upper ratio, %
56.41:
43.59
51.93:
48.07
59.10:
40.90
7.17   FR 51.93:
48.07
57.60:
42.40
56.95:
43.05
57.25:
42.75
59.10:
40.90
56.86:
43.14
56.83:
43.17
54.75:
45.25
Culet, % 0.77 0.68 0.87 0.19 N/A EX                
Twist, 7.67 6.26 10.13 3.88   FR 6.26 7.51 10.13 6.79 N/A N/A N/A N/A
Girdle Bezel, % 3.48 2.92 4.14 1.22 2A GD 2.92 3.23 3.11 3.42 3.31 4.03 4.14 3.70
Girdle Bone, % 3.73 3.35 4.01 0.65   EX 3.35 3.51 3.90 3.69 4.01 3.55 3.89 3.95
Girdle Valley, % 2.30 1.39 2.98 1.59 N/A GD 2.19 2.46 2.52 2.76 2.58 2.98 2.27 2.65
2.40 2.01 1.97 2.36 1.86 1.39 2.11 2.22

Plots

Azimuths,

1

2

3

4

5

6

7

8

Pavilion 356.7 17.8 36.3 140.7 162.2 182.6 247.6 291.5
Lower girdle facets /
Halves
13.5 22.6 33.2 39.2 137.6 147.8 155.6 166.1
178.7 200.6 244.0 255.0 283.2 306.1 338.1 0.3
Crown 3.0 28.8 89.3 150.9 175.8 215.4 269.7 324.8
Upper girdle facets 6.6 26.2 32.7 46.0 132.8 146.0 155.0 171.0
Star facets 180.2 211.4 228.1 260.0 281.5 310.9 329.8 0.1
18.0 43.9 135.4 162.0 192.0 241.1 297.2 346.6

 

Girdle center Culet center Table center

Offset

Distance

Width wise

Length wise

Culet-Table offset by table axis, % 7.53 0.31 0.59 7.51
Culet-Table offset by table axis, mm 0.311 0.013 0.024 0.310
Girdle-Culet offset by table axis, % 18.74 0.29 0.59 18.73
Girdle-Culet offset by table axis, mm 0.773 0.012 0.024 0.773
Girdle-Table offset by table axis, % 11.22 0.27 0.00 11.22
Girdle-Table offset by table axis, mm 0.463 0.011 0.000 0.463
Girdle to table-culet line offset, % 7.53    
Girdle to table-culet line offset, mm 0.311    

Culet shift ratio by width & length

 

Width 4.126 mm, 100%
Width-wise culet shift ratio 2.088 mm, 50.61 % 2.040 mm, 49.45 %
Length 6.479 mm, 100%
Lengh-wise culet shift ratio 2.467 mm, 38.07 % 4.012 mm, 61.93 %

Culet shift ratio by main diameter

 

Main diameter (width) 4.126, 100%
Width-wise culet shift ratio 2.088 mm, 50.61 % 2.040 mm, 49.45 %
Lengh-wise culet shift ratio 2.467 mm, 59.78 % 4.012 mm, 97.23 %

Cut parameters description

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