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The SweetLine parameter description, information about its calculation, and presence in appraisers and reports is presented on the SweetLine page.

For Round Brilliant, Oval

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  • Changing the SweetLine parameter does not necessarily affect the solutions. If a solution found with default SweetLine happened to fall close enough to the optimal line, then the search with lowered SweetLine might end up in the same solution.
  • The MaxMass preset takes into account neither the CrownAngle and PavilionAngle nor SweetLine limitations.

Overview Video

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Yellow Flags = SR above solution #1, Modern_Cut with Table EX = [54 60] 
Green Flags = the same with SweetLine EX = [-0,3 0,3]

Preset

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Original stone18. SemipolishedSeries 1 (Default SweetLine = 1,5)

Mass4.89631.76621.81041.80821.80741.80551.80391.80181.7958
Optical symmetryNA8.056.006.737.107.567.747.938.22
CrownAngle,
PavilionAngle

NA

34.69
41.24

35.20
41.65

35.20
41.65
35.20
41.65
35.20
41.65
35.20
41.65
35.20
41.65
35.20
41.65
Light returnNA
0.900.870.870.850.870.880.89
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Series 2 (SweetLine = 0,3) 

Mass1.80201.79971.79801.79531.79001.78901.7817
Optical symmetry5.465.575.836.237.637.148.17

CrownAngle,
PavilionAngle

35.70
40.85
35.70
40.85
35.70
40.85
35.70
40.85
35.20
40.65
34.70
41.01
35.20
40.65
Light return0.980.991.001.010.991.020.99
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Info
Light return is currently not included in HPO reports. It may be obtained via DiamCalc. To open a model in DiamCalc, export it from HPO using File → Export → Diamond to dmc file.

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Yellow Flags = SR above solution #2, Modern_Cut with Table EX = [54 60] 
Green Flags = the same with SweetLine EX = [-0,3 0,3]

Preset

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Original stone18. SemipolishedSeries 1 (Default SweetLine = 1,5)

Mass1.37361..11251.13751.13631.13181.13411.13331.13241.1295
Optical symmetry

5.045.976.947.367.618.158.43
CrownAngle,
PavilionAngle



35.20
41.65

35.20
41.65
34.20
41.85
34.70
41.45
34.70
41.45
33.70
41.85
33.70
41.85
Light return

0.910.910.930.950.950.940.95
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Series 2 (SweetLine = 0,3) 

Mass1.13041.12971.12931.12771.12621.12421.1212
Optical symmetry5.106.386.847.157.417.508.39

CrownAngle,
PavilionAngle

35.20
40.85
35.20
40.85
35.20
40.85
35.20
40.85
35.20
40.85
35.20
40.85
35.20
40.85
Light return0.970.970.970.970.970.980.99
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For AnyCut

Specifying Unique SweetLine Slope for Client Cuttings

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