These ringed tissue nuceated FW are very common and have been around for several decades. The rings are often quite deep.
The bead nucleated ones are generaly not ringed. The older bead nuked ones may have a ripply texture.
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I'll DM you a code to take it for free.
And any clasp can be strung onto any strand of pearls. The clasp may not even be original to the necklace. So we'd really need to see more pearls to judge them.
It's easiest to evaluate pearls against a white background. Dark backgrounds are less helpful.
Two of those pearls don't look fully round. Based on shape and that photo alone, I'd say they are freshwaters.
However, that off-roundness could just be a camera effect. Please post a photo showing all the pearls.
I don't recognize the shield shaped mark.
I'm leaning toward freshwaters.
The sizes and shapes, the color too...not so much golden as peachy yellow? At least that's what I see. More photos would help.
Cultured pearls and synthetic (lab created) stones differ in that cultured pearls are formed by live mollusks in a natural environment-- the bead nucleus made of shell is provided (or just a bit of donor mantle tissue in the case of many freshwater pearls), but the mollusk does the work of...
If you think you'd like to find more affordable golden SSP, I suggest you have a look at circled (circlé) shapes. Circled south seas pearls are the least expensive shape, because they are more common.
I bought mine from Cees Van Oije of Amsterdam Pearls. Cees is a member of Pearl Guide also...
You are correct! They are freshwater pearls from China-- their eggy shapes give them away.
Unfortunately I think you will find there is not a lot of demand for used, off-round freshwater pearls. There are so many of them out there.
I recommend you do a search on eBay for SOLD pearls like...
There were two threads with the same topic, so I locked the other one to avoid confusion. I can't see how to merge the threads, but this was the first one, which has some replies. Help Identifying an Antique Seed Pearl and Diamond Necklace...
I don't know how to merge this thread with the other identical one, but please continue discussion on the other thread (I'm locking this one to avoid confusion).
https://www.pearl-guide.com/threads/help-identifying-an-antique-seed-pearl-and-diamond-necklace-do-these-look-natural.465096/