Vintage Moonstone Art Glass & Rhinestones 15" Necklace. Designer Quality

Unable to determine the designer of this unmarked vintage chocker necklace. All stones are prong set in a silver tone setting. The second photo shows the most accurate color. There is one issue. Look at the last photo of the back. One of the links has slipped out of its slot. It does not effect the necklace and I am sure it can be put back in, but my finger dexterity is so poor, I didn't attempt it. It really is fine as is. Believe this is from the 1950s. I would call this Juliana style. If more information or photos are desired, please don't hesitate to ask.