ISignetRing

Returned by SignetRingApi — a signet ring: a flat face carried on a band. No gems, so no mother gem. Adds to IParametricObject:

Member	Meaning
RingSizeLabel / RingSizeRegion	Ring size as label + region
RingDiameterMm	Inner diameter, mm
Face	The face and the band under it — ISignetFace

The section is a live view over the ring’s stored parameters: its getters read the current values and every setter regenerates the ring in place (same Guid).

The face (ISignetFace)

Shared with IAdvancedSignetRing — both rings store the same face model.

Member	Meaning
ProfileName	RING_PROFILE asset name, "" when unset
Width / Height	Face size, mm
HeightPosition	How high the face sits over the finger, mm
Rotation	degrees (signed)
Tangent	Tangency of the transition into the band
ShapeMode	"Circle" or "Custom"
WidthBottomProfile / HeightBottomProfile	Band section at the bottom, mm
WidthMiddleProfile / HeightMiddleProfile	Band section at the middle, mm
Recess	Hollow the back of the face
Thickness / InnerHeight	mm — used when Recess is on
SetProfile(assetName)	RING_PROFILE asset by name
SetWidth / SetHeight / SetHeightPosition / SetRotation / SetTangent	The face
SetShapeMode	"Circle" or "Custom"
SetBottomProfile(width, height) / SetMiddleProfile(width, height)	Band sections, in one call each
SetRecess / SetThickness / SetInnerHeight	The recess

String parameters are case-insensitive and tolerate dashes/spaces; an unknown value raises a clear error listing the valid ones.