Occasionally we have to trim back an irregular top on a drop pearl so a finding will set better.
I was filing a pointy tip off a blue south sea pearl today when the nacre ran out and i could see what looked like compressed peat inside.

Curious..of course.. I poked around inside.

There was fibrous peat like stuff brown

White waxy stuff in lumps.

Flakes of thin plastic like cling film

Flakes of plastic with fibres that looks like medical dressing tape

What was any of that doing inside a pearl?
Is this some sort of an attempt at a souffle south sea pearl?

Not expecting any of this stuff inside a pearl

I’ll take the pearl and its contents to Hong Kong with me and ask around, see if anyone has a clue