It's a cross on a necklace and already implicated cross too.
Posted under General
S1eth said:
But then, would pendant imply necklace? Or do we distinguish between them?
Hmm, I can't think of any occasion where a pendant would be present without an accompanying necklace. Pendant would probably implicate necklace in that case, as the pendant is generally attached to the necklace, unlike a brooch.
Pendants are almost always found on necklaces, true, but the exceptions to the rule make any sort of pendant -> necklace implication seem to me like a Bad Idea. Danbooru has numerous instances of pendants hanging from chokers and collars, as well as a few odd instances of pendants suspended from clothing (e.g., post #2059381 or post #1430998, at stomach level) or things like bracelets (post #1515115) and nipple chains (post #1786812, questionable). The fact that pendants are implicated by locket adds an extra complication, as a locket is unambiguously a locket whether it's attached to a necklace or not. See post #1898141 or post #353082.
With regard to the original post, why stop at cross necklace? Consider a bulk implication that includes heart necklace, carrot necklace, etc. as well.