This parameter is applicable to Oval cut.
Square deviation is the ratio of the stone projection area to the area of minimal rectangle containing it, normalized so as to equal 0 when the projection is an ideal ellipse.
Square deviation = (S1/S2 - 0.784)/0.3
Note that Square deviation is reported in MyAppraiser (but not in the Standard report) in percents, that is, multiplied by 100.
Reporting
Square deviation does not appear in Polish reports.
| Reported in | Values | Units | Bookmarks |
|---|---|---|---|
Standard Report for Rounded Fancies | Avg (the only value) | None |
|