Gifted wedding pearl necklace identification help

[Eazypeezy88]

Hi, I'm new here and actually joined because of this particular necklace. It was given to me for my wedding from a friend who worked at a local thrift shop. So imagine she found them in a donation box. I actual forgot them the day of my wedding and they have been setting idle since. I didn't think they were real at first but after trying to look them up maybe they are. They have a 585 on the clasp, that from what I understand, simply means the clasp is 14k gold. There is another symbol beside that i can't identify. I'll attch it with a few other photos. It is 18" which means princess. And The pearls graduate in size.
I'm trying to figure out worth. I don't know how pearl necklaces are valued. Is the symbol next to the number significant? Is it something that has to be appraised? Is it worth getting appraised? I would like to sell them if they are worth anything. Christmas is around the corner and they have sat atleast 5 years unworn.
Any information, suggestions, or help pointing me in the right direction would be greatly appreciated!
Thank u.

 

[Pearl Dreams]

They look like akoya pearls but to be sure why don't you do the so-called "tooth test"-- rub two of the pearls very gently against each other after wiping them clean with a soft damp cloth. Real pearl nacre will feel a bit gritty or resistant; imitation pearls will feel smooth.
Edited to add: I have stopped recommending rubbing pearls against teeth (“Tooth test”) Teeth are harder than pearls and can scratch them.

The markings on the clasp are probably those of the maker of the clasp.

It is not worth getting them appraised. Unless they are a well-known brand name like Mikimoto, or historic pearls, or have a special clasp, used (pre-owned) pearls do not tend to sell for very much. But it may still be worth your while to try to sell them, whether in a consignment shop or online.

To see what graduated pearl necklaces tend sell for I suggest you look at completed sales on eBay.