Necklaces, bracelet

I assume the smaller piece is a pin of some kind. Pearl type jewelry, unsure if real. Also includes an infinity necklace. My grandmother is purging her jewelry collection so once all listings are sold out, then all vintage pieces will be gone. Many listings include pieces that I'm unsure of origin but are vintage anywhere from 60s to 90s. Please ask any questions you may have! Build Bundles for big discounts!!!