Proportion is everything when it comes to accessorizing for plus-sizes. Too big can be overpowering; too small can make you look even bigger. When it comes to jewelry including earrings, bracelets and rings, this rule doesn't always apply.
However, necklaces should vary in size depending on what you are wearing. If you are wearing a busy top, with a lot of prints or embellishments, go smaller and daintier around the neck area.
If you have a thick neck, stay away from chokers and small necklaces. Longer chains look good with low-cut tops and chunky, beaded jewelry can jazz up a plain outfit.