Plain Jane Jumper

So I have a plain grey jumper that I love because it has a wrap back and its the only jumper I have that is not just a basic old jumper but... it's plain grey and I think I am now realising it might have to be worn with some statement necklaces so I have picked out a couple and please let me know what you think!!

From River Island the gold twist necklace;

From Asos the chevron necklace:

Or from New Look the neon green necklace;

And here is the jumper with nada! 

I'd love to hear any other suggestions!!

All pictures from the individuals websites.

Thanks for reading xx