90s Vintage Stacking Rings Semiprecious Stones Size 6

Vintage stacking ring set. Good vintage used condition. There is some minor wear or possibly tarnish on the metal that is only visible under magnification, or it might just need a better cleaning than I had time to do. This was sold to me new as sterling silver in the late 90s but is neither stamped nor signed. The metal is etched to give it an “archeological treasure” look which was popular at the time. I purchased this at a department store jewelry counter. The stones are - Amethyst (oval) Moonstone (circle) Smoky quartz (square) Style profile - Ancient Modern Fairytale Minimalism Cabochon Solitary Stone Solitaire Stacking Ring Stacking Jewels Stacking Stones