I tried to post this a few days ago, but now I have pictures!
My son slipped these "beads" to me and asked me to make them into a necklace for his wife for Christmas. Apparently they were a necklace, which broke. I cannot imagine these even being in the same piece, but... The milky blue is about half an inch overall, and so is the one that looks like mother of pearl, both in what looks like antique sterling settings.
I found the freshwater pearls, which have the same tones but holes only large enough for a single wire.
There are 7 of each kind of "jewel", and both of them have 2 holes for wire, tho tiny and close together. I understand it to be some sort of "vintage" style, but I can't see what to do with them. Any ideas will be appreciated!