If you are in search of an exclusive look that is recognized by all, then an emerald necklace may fit your bill. Emerald features a bottomless dark green color that has a look all to itself. Smuggled up from South America and traded all over the world, Emerald has been highly regarded for centuries. You can find simple a simple emerald necklace to suit your style or you can spice it up with a more complicated and bold necklace. Either way, no one will question your good taste.