Czech harlequin 40" Deco necklace --how to describe slight issue w/cord

No shortage of keywords on this one, just found another auction for the exact item titled:

Czech Glass 30s art deco tutti frutti square bead flapper necklace harlequin 40"

Problem is that my necklace cord has an issue. Not horrible, but does not hang perfectly straight as you can see bottom left in the 2nd photo. The cord is a plastic stretch kind. Was thinking I might say, "necklace cord is a bit stretched, might need to be restrung at some point." Does that cover it or is there a better way to describe? Thanks.

 

When I get a necklace with crooked nylon cord, I hang it on a doorknob or something like that, and hang a pendant on it for a tiny bit of weight, not too heavy. After a while it hangs perfectly without the pendant.

 

I suspect it has been restrung and over tightened. It would not have been on nylon. Warmth would do it.

 

Will try warmth and hanging for a bit. Thank you AJ and OBB!