This parameter is applicable to the following cuts: Round Brilliant, Oval.
The SweetLine is a special parameter used for introducing combined limitations on CrownAngle and PavilionAngle. To achieve better optical performance (light return, fire, etc), CrownAngle and PavilionAngle should preferably fall within a certain area which can't be adequately modeled by setting independent bounds on these two parameters. SweetLine is intended to address this issue.
Calculation
SweetLine,° = PavilionAngle,° - PavilionAngle,° (OL)
Where:
- PavilionAngle,° - Avg (average) value for the model is used
- PavilionAngle,° (OL) is PavilionAngle,° of the point on the SweetLine Axis, that has the same CrownAngle,°
- CrownAngle,° - Avg (average) value for the model is used
- SweetLine Axis is the line with negative slope 1:6 passing through the point with CrownAngle = 34.5 and PavilionAngle = 40.75
- Negative slope 1:6 means "each 6° increase of CrownAnge is 1° decrease of PavilionAngle
Usage and Examples
For a detailed description of how the SweetLine parameter can be used for getting optimal solutions, see Using SweetLine page.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
None | NA | Single value | ° | NA | NA |
Visualization in Appraisers
| Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| Single value | ° | NA | Cut | SweetLine |
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