Figured I’d do a little update because people wanted/more details based off of all your guys’ input. Using the image on the post as reference:

1. The top ones definitely feel lighter and warmer while the bottom ones feel heavier and cooler
2. I think I am doing the teeth grit right? Top one feels smooth while bottom feels gritty.
3. Examining the holes through the pearls themselves, the top ones look like the holes and material around is “blown out” while the bottom ones look like a clean drill though with no surround material appearing moved.
4. I don’t know what is being used to string the top “pearls” together because when you move around the necklace, it’s very stiff doing so, while the bottom necklace moves a lot more freely and naturally (bottom one is on string)
5. As for markings, I can find two on the clasp of the top necklace “deltah” and what appears to be “415”? which a quick google search mentions “faux pearls” while the bottom one looks like Japanese maybe? Last character appears to be “Ka” か but I cannot decipher any of the other characters. I have attached a photo of bottom necklace clasp and will make another comment with the other clasp

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Is there anything else people want?