Illusion Spike Choker
You don't want those chokers that are overly accessorized, but this little spike adds just enough bang that it still looks delicate and edgy at the same time. The best part is the rest of the necklace is see-through, so you can really dress up or dress down. This would look beautiful with something strapless.
Illusion Spike Choker Necklace, ASOS, $14.50