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Standard report - average GIA values

Now the average values are available for parameters calculated via GIA rules. Previously these parameters were shown only after rounding via GIA rounding rules.The new values are available through tooltips - hover the mouse above a cell in the GIA Rounded column to see the value.

Now Standard report features three calculation types for parameters (values marked with respective colors in the image above):

Via Octonus theory"Avg" columnCalculated via OctoNus theory,
normalized on OctoNus average diameter
Math rounding
GIA rules, GIA rounding

"GIA Rounded" column

Calculated via GIA theory,
normalized on GIA diameter

GIA rounding
GIA rules, averageTooltip over the cell

in "GIA Rounded" column

Calculated via GIA theory,
normalized on GIA diameter
Math rounding

As one can see in the image above, the Avg and GIA Average values differ, because they are normalized on OctoNus and GIA diameters respectively. And the GIA Rounded value is based on the GIA Average and rounded via GIA rules.

When Avg and GIA Rounded values differ in a non obvious way, the new GIA Average value can help to understand the cause of this difference.

Galahad Faceting report - Reference line is shown for pavilion mains

A useful polishing technique is to mark a line around a semi-polished stone at the height of the lowest point of future pavilion mains. This line gives the polisher a reference where to stop polishing a main facet.

The reference line height is the lowest bottom point height among all pavilion main facets.

The reference line and the bottom point height are now shown in the Galahad Faceting report for Pavilion Main faceting stage. The reference line is shown as a green dashed line on the Shape image. The bottom point height of the processed facet and the distance from the reference line is shown in the Parameters table on the right.

As we can see in the picture above, the bottom point height of the Step 1 is 1.722 mm and the distance from the reference line to the bottom point is 187 μm.

Optical Symmetry - Hearts&Arrows lighting takes part in calculation

Optical Symmetry calculation for RBC stones now takes into account the Hearts&Arrows lighting in addition to ASET lighting. With this change, the optical symmetry values in HPO better correspond to the values calculated by DIBox 2.0, which are provided at

The values in Sym-O column in the solution list will change for RBC stones.

Galahad 1 mode - visualization improved

Visualization of the faceting steps in G1 mode was improved:


SmartRecut solutions improved in some cases, e.g. when a semi-polished stone has a fracture in the table.

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