Vintage Fire doublet ring

I've hung on to this vintage ring for a long time but it's time to let it go. it is unmarked. tested as 10k gold however the band is ever so slightly magnetic. i am unsure if it is an opal doublet or maybe a thin layer of fire agate doublet or even harlequin glass it has a terrific effect in light! the stones may be paste or rhinestones. just over a size 9. just a lovely mystery of a ring! please see photos for measurements and details and condition other items are display only bundle for savings