@Juan Vito, You may be interested in taking the Cultured Pearl Association of America's "Pearls As One" course, which is available in English and some other languages. This is the website, and I am messaging you a code to take the course for free:
www.pearlasone.org
Good photos and information. They are akoyas of average quality with a manufactured clasp. I'm guessing 1950s-1960s. I think they may have been restrung so you won't need to do that for a while. I do not recognize the brand mark.
Enjoy wearing them!
I also tend to play with long necklaces. Just do it with clean hands when possible, and wipe the pearls with a soft microfiber cloth before you put them away. Now and then dampen the cloth.
Very pretty cultured akoya pearls. They are real pearls-- but not natural.
Let me explain.
Real pearls fall into two categories:
1. Natural pearls -- wild pearls, produced by mollusks without any intervention from humans. These are very rare and expensive.
2. Cultured pearls -- farmed...
Akoyas. There are some pearls that show erosion of the nacre near the drill hole; if you look closely you will probably see the bead nucleus there.
I'd have them cleaned and restrung. Congrats-- and enjoy!
Nice!
I find the best way to avoid leaving too much space at the final knot is to leave only just the space needed to get the needle into the end pearl, between the gimp and the pearl.
With a thinner thread you can also use a thinner gimp (I use Fine) which is a little more flexible, so you...
There is an excellent series of articles about mabe and blister pearls, beginning here:
https://www.pearl-guide.com/threads/i-introduction-to-blister-and-mabe-pearls-ultimate-guide.454956/
He hedges his bets in his description, calling them both akoya and freshwater-- and his length is wrong-- and that clasp is not quite like other ones of that brand that I've seen-- but I'd say yes, they are akoyas, just a bit baroque.
I just want to add that while the necklaces are nice, they are not likely to bring a lot of money on resale. Unfortunately pre-owned (used) pearls don't tend to hold their value. If you or she are still wondering about what they might bring, do a search on eBay for similar SOLD necklaces. That...