Standard report for rounded fancies

General information

Cut Oval
Model Crown Reflect scan 3
Expert name N/A
Report date 09.06.2022
Scale weight, ct 3.656
Corrected mass, ct 3.65, 3.6538
Spread 0.35ct, 8.85 %
MIC 8.810 mm
Extra Facet Girdle / Nat No
Extra Facet Crown No
Extra Facet Pavilion No
 
Appraiser title Lexus_Opt_12FEB2011
Overall cut quality FR
Symmetry appraiser title Symmetry
Overall symmetry quality N/A
Model building info The model has small errors
 
Width 8.811 mm
Length 12.066 mm
Diameter Minimum 8.811 mm
Diameter Maximum 12.066 mm
Ratio (L/W) 1.369
Total height 5.472 mm, 62.11 %

 

Open 3D model by a free GemAdviser Software

Average values, mm

Crown height Pavilion height Total height Table Culet Girdle bezel Girdle bone Girdle valley
1.301 3.774 5.472 6.146 0.023 0.397 0.386 0.236

Parameters

Avg

Min

Max

Dev

1

2

3

4

5

6

7

8

Crown height, % 14.77 14.44 15.12 0.68 14.81 14.73 14.96 14.59 14.73 14.44 15.12 14.79
Crown height bone, % 15.09 15.01 15.18 0.17 15.10 15.05 15.18 15.16 15.01 15.05 15.07 15.13
Crown height valley, % 15.86 15.56 16.12 0.55 15.92 15.71 15.82 15.91 16.12 15.82 15.78 15.85
15.83 15.56 15.78 15.91 16.11 16.08 15.77 15.87
Pavilion height, % 42.84 42.50 43.13 0.63 42.64 42.87 42.73 43.06 43.05 43.13 42.50 42.70
Pavilion height bezel, % 42.64 42.39 42.91 0.52 42.57 42.43 42.91 42.86 42.89 42.54 42.39 42.50
Pavilion height upperbone, % 42.64 42.39 42.91 0.52 42.57 42.43 42.91 42.86 42.89 42.54 42.39 42.50
Pavilion height bone, % 42.84 42.50 43.13 0.63 42.64 42.87 42.73 43.06 43.05 43.13 42.50 42.70
Pavilion height valley, % 43.59 43.27 43.91 0.63 43.50 43.48 43.50 43.40 43.72 43.82 43.77 43.91
43.83 43.82 43.72 43.27 43.30 43.57 43.32 43.42
Pavilion height valley type 2, % 43.59 43.27 43.91 0.63 43.50 43.48 43.50 43.40 43.72 43.82 43.77 43.91
43.83 43.82 43.72 43.27 43.30 43.57 43.32 43.42
Table, % 58.81 58.32 59.29 0.97                
Upper girdle facet angle, ° 40.05 36.29 43.10 6.80 42.86 40.79 39.06 36.42 36.29 39.65 41.16 42.36
42.73 41.01 40.11 37.10 37.00 40.07 41.13 43.10
Upper girdle facet azimuths, °         9.0 24.8 48.6 72.1 106.3 131.5 155.9 170.4
        189.2 204.8 229.6 253.5 286.1 311.7 335.0 350.7
Star angle, ° 20.13 19.70 20.47 0.77 19.91 17.15 17.31 19.70 20.43 17.29 17.13 20.47
Star :
Upper ratio, %
49.71:
50.29
46.25:
53.75
53.02:
46.98
6.77 46.25:
53.75
51.28:
48.72
53.02:
46.98
47.30:
52.70
48.58:
51.42
52.79:
47.21
52.20:
47.80
46.26:
53.74
Star azimuths, °         15.9 59.4 116.9 164.7 195.7 241.1 300.2 343.7
Lower girdle facet angle, ° 37.88 33.62 41.80 8.18 41.30 39.30 36.59 33.67 33.80 36.87 39.67 41.80
41.79 39.75 36.98 33.79 33.62 36.59 39.28 41.29
Lower girdle facet azimuths, °         8.1 26.7 46.0 73.9 106.1 133.6 153.5 172.0
        188.3 207.2 225.7 253.3 285.8 313.4 333.3 351.6
Culet, % 0.27 0.21 0.34 0.13                
Facet Twist, ° 18.04 16.06 19.23 3.17 16.06 18.84 18.82 16.76 18.52 19.23 N/A N/A
Girdle height bezel, % 4.50 4.33 4.66 0.33 4.66 4.51 4.42 4.45 4.33 4.54 4.49 4.63
Girdle height bone, % 4.38 4.03 4.65 0.62 4.44 4.63 4.03 4.09 4.21 4.52 4.65 4.49
Girdle height valley, % 2.68 2.27 3.03 0.75 2.69 2.95 2.82 2.81 2.27 2.50 2.60 2.37
2.45 2.76 2.65 2.93 2.70 2.47 3.03 2.83
Girdle height valley type 2, % 2.68 2.27 N/A 0.75 2.69 2.95 2.82 2.81 2.27 2.50 2.60 2.37
2.45 2.76 2.65 2.93 2.70 2.47 3.03 2.83
Girdle height (Crown Mains), % 4.45 4.25 4.65 0.40 4.65 4.46 4.34 4.41 4.25 4.49 4.36 4.62
Girdle height (Pavilion Mains), % 4.34 3.98 4.63 0.65 4.41 4.61 3.98 4.04 4.14 4.49 4.63 4.44
Girdle height (Upper girdle facets), % 2.69 2.27 3.05 0.78 2.70 2.96 2.84 2.82 2.27 2.50 2.61 2.40
2.46 2.77 2.65 2.93 2.72 2.47 3.05 2.83
Girdle height (Lower girdle facets), % 2.69 2.27 3.05 0.77 2.70 2.96 2.82 2.81 2.27 2.52 2.62 2.38
2.45 2.76 2.78 2.93 2.70 2.49 3.05 2.84

Main facets' angles & azimuths, °

Avg

Min

Max

Dev

1

2

3

4

Crown curve angle (C) 35.38 34.91 35.85 0.94 35.85 34.91 N/A N/A
Crown head angle (H) N/A N/A N/A N/A N/A N/A N/A  
Crown point angle (P) 28.43 27.98 28.88 0.90 27.98 28.88    
Crown wing angle (W) 32.66 32.48 33.11 0.63 32.50 32.48 32.58 33.11
Crown curve azimuth (C)       359.81 179.95 N/A N/A
Crown head azimuth (H)         N/A N/A N/A  
Crown point azimuth (P)         90.06 269.95    
Crown wing azimuth (W)         35.74 144.38 215.36 324.52
Pavilion curve angle (C) 39.62 39.35 39.85 0.50 39.35 39.81 39.85 39.45
Pavilion head angle (H) N/A N/A N/A N/A N/A N/A N/A  
Pavilion point angle (P) N/A N/A N/A N/A N/A N/A    
Pavilion wing angle (W) 33.83 33.71 33.97 0.26 33.75 33.97 33.91 33.71
Pavilion curve azimuth (C)       16.90 163.20    
Pavilion head azimuth (H)         N/A N/A N/A  
Pavilion point azimuth (P)         N/A N/A    
Pavilion wing azimuth (W)         58.87 121.07 239.25 300.54

Facets slope angles

 

Facets azimuth angles

 

Girdle facets angles & azimuths

 

  Girdle center Culet center Table center Girdle center mass MIC center

Offset

Distance

Width wise

Length wise

Culet-Table offset by table axis, % 0.44 ± 0.18 0.39 0.21
Culet-Table offset by table axis, mm 0.039 ± 0.016 0.034 0.019
Girdle-Culet offset by table axis, % 0.25 ± 0.16 0.21 0.14
Girdle-Culet offset by table axis, mm 0.022 ± 0.014 0.018 0.012
Girdle-Table offset by table axis, % 0.40 ± 0.14 0.18 0.35
Girdle-Table offset by table axis, mm 0.035 ± 0.012 0.016 0.031
Girdle to table-culet line offset, % 0.30    
Girdle to table-culet line offset, mm 0.027    

Culet shift ratio by width & length

 

Width 8.811 mm, 100%
Width culet shift ratio 4.388 mm, 49.80 % 4.423 mm, 50.20 %
Lengh culet shift ratio 6.019 mm, 68.31 % 6.045 mm, 68.61 %
Length 12.066 mm, 100%
Lengh-wise culet shift ratio 6.019 mm, 49.89 % 6.045 mm, 50.11 %

Table by width & length

Width 8.811 mm, 100% Length 12.066 mm, 100%
Table by width 5.139 mm, 58.32 % Table by length 7.154 mm, 59.29 %

Actual Length axis asymmetry

  Length axis symmetry correction
 
 
 

Parameters

Cut

Sym

Diameter, mm EX  
Total height, % EX  
Crown height, % EX N/A
Pavilion height bezel, % N/A N/A
Table, % EX N/A
Upper girdle angle, °   N/A
Star angle, °   N/A
Lower girdle angle /
Halves angle, °
  N/A
Star :
Upper ratio, %
  N/A
Culet, % N/A N/A
Facet Twist, °   N/A
Girdle height bezel, % VG N/A
Girdle height bone, %   N/A
Girdle height valley, % N/A N/A

Cut parameters description