My dress is long red chiffon with an open back and a V-neck. I want to draw attention to either a beautiful necklace or some big earrings.... What one should I choose?

Well it depends on the colour of the necklace and earings. But either way i would definitely go for the earring. I mean ya gotta trust me on this...Warning: do not wear hugee earings they can easily get caught on something. Either wear hoop earings or these long beautiful earings. As soon as you walk in the door BAM you're the centre of attention (in a good way) Well i hope so...

I would go with just the earrings. Since its a v cut dress, it should show off your bare neck only.

I agree with andre, V Necks should never be paired with necklaces, it distracts from your chest