Aren't these lovely? The most affordable diamonds you will ever buy LOL. Gem cut anyway. They have little silver metallic looking strings which let them dangle and catch the light  They are acrylic as far as I know and what I have seen online describing these vintage items. It does not actually say on the package but that makes perfect sense. You could use these for a wedding or as Christmas decorations or any festive celebration or year-round. I know once I hung them up I would probably not want to take them down. They're so pretty. I have listed these as used, but I believe they are New Old Stock in this package. I will be posting one other set of these, the exact same thing. If you want both, I will combine shipping. It would probably only be an upcharge of like a dollar or two more than what you were paying already for shipping on one set. There are 18 individual ornaments in here. They appear to be separate and not linked at all.(1FBRRks)