Jewelry with halter top

Your halter, if jeweled, IS kind of your necklace. I'd skip the necklace, and wear some pretty earrings, but nothing too long or flashy - probably just some simple pearl or diamond studs. How are you doing your hair? If your hair is down, I think you could pull off some bigger/flashier earrings, but if you're doing an updo, I'd keep them simpler, personally.

To be honest I would skip the necklace altogether and just wear earrings

I would skip the necklace. I feel like it kinda clashes with your dress instead of complimenting it.

I would say no necklace and some bold statement earrings.

Thin chain with the jewels should look great!

Something like this

I would wear a thin chain with a nice pearl drop or something.

Beautiful dress! I think it looks nice with the necklace, its small so it doesn't compete with the beading like a bulky necklace would. Just add some complimentary earrings and you're set! Alternatively, no necklace with a fancy cuff bracelet would look great as well!

I'm not a fan of the necklace you shared in the picture with your dress. The necklace appears to be way too short for that dress. I like it better either without a necklace or one like @tanya shared with the longer chain would work.

Looks MUCH better without the necklace. I think detracts from the beautiful beading.

ETA: I also don't think pearls go with your dress... If you have to wear a necklace, I would do a simple pendant on a thin chain.

If you must wear a necklace, I would wear a longer chain so it drops in a V shape that echoes he neckline of the dress. Your necklace is too short and round and competes with your dress.The one Tanya posted is better.