I don't think so based off of concept art pictures and pictures from the anime I have seen.
I think personally based off kuroshitsuji 2 this picture shows how the chain appears, but don't trust the rest in making your costume
I found the bigger balls with the metal on each side at walmart in the beads section, its a dirty silver and not gold but I think in the anime its silver ?!?!?
Then I'm going to put 4mm beads as filler between the bigger beads, I'll try to take a picture of it tmrw if I get it done