First, take into consideration the cut of your dress. A sleeveless dress can carry a different shape of necklace and allow for more space on your chest for decoration. A halter-cut may be more appropriate for a very simple, single strand necklace or you may want to skip a necklace all together and focus on a pretty pair of earrings and a bracelet. Keep in mind that these are only suggestions and make decisions that will make you happy, it is your day after all!

Second, have a good look at the way that your dress is decorated. It could have a very large pattern that covers the entire dress with sequins and pearls form head to toe. Or, it could be very simple with the only accents being in the cuts of the fabric such as different layering of materials, gathers, or pleats. The overall style of the dress is a crucial detail to consider when choosing jewelry that will compliment your ensemble. If you do not take the style of your dress into consideration, you could end up with a result that looks awkward and takes away from the over-all look that you've set out to accomplish.

With simpler dresses, I would suggest going with jewelry that is more elaborate such as a Swarovski Three Point Crystal Necklace. Necklaces with this much detail work well with dresses that don't have much beadwork and really give the dress the classic statement that it deserves.