The crown height is measured using main crown facets. It is measured for each main facet and then the average, minimum, maximum and deviation values are calculated. HPOxygen finds the highest vertex of the whole model (it is one of the vertices of the table) and the lowest vertex of each main facet.
Calculation
Search for "crown height" in Stone Heights Calculation.
Reporting
| Reported in | Section | Values | Units | Bookmarks | Name in Reports |
|---|---|---|---|---|---|
| Main Parameters | Avg, Min, Max, Dev | %(diameter), mm |
| Crown height |
| Detailed Parameters | All 8 values (round brilliant and rounded fancies) | %(diameter), mm |
|
Visualization in Appraisers
Value | Units | Bookmark | Tab | Parameter Name | Comment |
|---|---|---|---|---|---|
| Avg | %(diameter) | CROWN_HEIGHT_PC_AVG | Cut | CrownHeight | |
| Dev | %(diameter) | CROWN_HEIGHT_PC_DEV | Symmetry | CrownHeight | Defined as the maximum difference of Crown Height measurements, i.e. the same as the deviation of Crown Height value. As all symmetry parameters, it is an estimate of a deviation from perfect symmetry and should be zero for an ideal stone. |
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