Some of the rings do say Avon. There is also some other branding on some of the rings but I could not read it well enough and don't have a magnifying glass.
Three of the rings circled have a few missing stones, everything else appears intact from what I can tell. The item "85+ pcs vintage costume jewelry lot antique 2lbs Rhinestone some signed rings" is in sale since Friday, December 3, 2021.This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Collections & Lots". The seller is "begolde" and is located in Troy, Texas. This item can be shipped to United States.