Hmm, I'm not really sure since I can see it being referred to as both a necklace and a pendant so..I think yes? Kinda weird to think that something very similar in appearance are in fact, not referred to as the same thing(s) and cannot be referred to as interchangeably. In short: necklaces = no jewelry/charm or adornment, just the chain. For example: pearl necklaces pendants = a piece of jewelry/charm attached to the chain of a necklace from a small loop, can also be a bracelet, anklet, etc. So the correct assumption here is since the necklace features a triangular-shaped piece, it would be more accurately identified as a pendant in this picture. (I'm bad at explanations, hope this clears things up though)
In short:
necklaces = no jewelry/charm or adornment, just the chain. For example: pearl necklaces
pendants = a piece of jewelry/charm attached to the chain of a necklace from a small loop, can also be a bracelet, anklet, etc.
So the correct assumption here is since the necklace features a triangular-shaped piece, it would be more accurately identified as a pendant in this picture.
(I'm bad at explanations, hope this clears things up though)