IPearl

Returned by PearlApi — a pearl is its own stone (a sphere on a plane) with two optional metal children baked alongside it: a calotte (cup) and a wire (post). Not built around a mother gem, so it extends IParametricObject directly and MotherGemId is always Guid.Empty. Read-only — no in-place setters (recreate + Delete() to change one):

Member	Meaning
Diameter	Pearl sphere diameter, mm
HasCalotte	A calotte child was baked with this pearl
HasWire	A wire child was baked with this pearl
CalotteId	Guid of the calotte child, Guid.Empty when there is none
WireId	Guid of the wire child, Guid.Empty when there is none