Vintage mother of pearl pendant necklace vermeil

Very vintage and super cool looking mother of pearl pendant. The pendant is likely vermeil - a thick gold plating that is thicker than your standard gold plate, but not as thick as gold filled. Paid with a vintage, used vermeil chain. The pendant is roughly 1.5" long (see my hand in the photo for context). The MOP is genuine and has gorgeous colors akin to a rainbow. I'm listing so many pieces from my personal jewelry collection (I have a ludicrous amount of vintage pieces), it'd take forever to measure everything, so I'm happy to provide measurements upon request. Reach out with questions, requests to add a video or any other detailed photo to the listing, etc! Will immediately report spammers that ask me to send photos to their personal number etc. Clearing out my personal collection to fund house projects. Thank you!!