Go Geometric for Instant Wow

If you are trying to slim the face, go for big triangles. Oversize triangles on a longer chain form a V that directs the eye for a face-slimming effect. If you are wearing your hair down, consider layering one necklace over another -- stacking the shapes guarantees a bold, eye-catching look.

Tiny pyramids frame lovely features.  Fun, flag-like details with a pop of color pull the focus up to pretty features. Plus, a shorter chain forms a scoop that beautifully frames the face.

Pretty pentagons elongate the neck. Pentagons that get larger in the center form a U that visually elongates the neck for a graceful, swan-like look.