Vintage Pendant Necklace, delicate goldtone chain, pendant with Asian graphic

This necklace came from an estate and we have not been able to find any background information about it, including the material of which the pendant is made. The chain is somewhat delicate and is approximately 16 inches long. The circular pendant is approximately .75 inches long and is about the size of a nickel. The circular pendant appears to be various tones of caramel color. The center of the pendant feature some sort of Asian graphic. The necklace appears to be in good to very good vintage condition. No cleaning products were used on this item. Cleaning, if desired, will be left to the buyer.