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MyAppraiser considers multiple geometric parameters of a stone. Some parameters are defined only for specific cutting types, and some are universal.

Cut parameters

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GirdleRatio (specific to Oval)

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SquareDeviation (specific to Oval)

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Painting parameters

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Girdle Extra Facets

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Symmetry parameters

Unless specified otherwise, symmetry parameter is just the difference between the maximum and minimum values of a multi-valued parameter.

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Shape (specific to Oval)

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CrownBreadth (specific to Oval)

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Main facet subtypes (Rounded fancies)

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Facets' slopes and azimuth angles

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Roundness

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Twist of Facets

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Facets Azimuth Symm

 

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