Stone Gold Sandstone with Moonstone Pendant With Silvertone Cap & Bale

In great pre-owned condition I am unsure if these are natural or man-made stone. I did a photo search & found it resembled Gold Sandstone & Moonstone, but I am not a geologist or a jeweler. All measurements are in the photos Any questions? Please ask me in the comment section below, thanks! Thanks for looking, sorry no trades or holds. We ship Monday through Friday rbydlr