The listing, Nice Vintage rhinestone / crystal "moonstone" necklace chocker 15" has ended.
This is an old necklace ('50s-'60s???) made with 5 pretty purple rectangular stones and over 50 rhinestones. It is gold tone (brass/nickel I think). The hook is adjustable; the neck size is 15" but can become smaller for just the right fit. These look like moonstones but I can't be sure, maybe glass but pretty none the less. Note the last pic showing the rhinestone at the end of the chain giving this the look of a quality necklace. Sorry about the 2nd photo - the main reason I'm listing stuff is to get points for a better camera. What a nice necklace to go with your summer attire!