These jewelry sets were custom-made in the early 1980th. My coworker's daughter, an artist, learned this technology to create Resin/Polymer Clay custom jewelry. She made a few sets and sold at the local art gallery, at one of the former Soviet Union's smaller republic. I don't remember the name of the artist, but there is her monogram on one of the pendants, see the picture. I bought the 3 sets, this one is the fullest. I guarantee that wherever you wear it, you will never meet another person wearing a similar one. There were only few of them made. I have 3 sets: this one - main color red. Also one greenish and another purpleish. Will be listed separately.