Stamped XP An "XP" stamp on a necklace or piece of jewelry stands for Xuping Jewelry, a large fashion jewelry manufacturer based in China. It indicates that the necklace is fashion or costume jewelry rather than solid precious metal. It’s a heavy necklace, very solid. Gold tone ??? Jesus Christ cross last supper pendant necklace with faux diamond-encrusted cross design . I found these going for $35 to $70 dollars so I’m asking $25 for mine. #christian #religious