The Round Face

The round face has a wide forehead, full cheeks, and a rounded chin. It's easily identifiable from its circular appearance and the absence of strong lines and angles. When choosing glasses for your round face, aim for styles that add contrast to your face's natural curves, and avoid frames that exaggerate the roundness of it. By adding contrast, you'll make your round face appear thinner and longer.

Choose frames as wide as they are tall to create the illusion of a slimmer face. Glasses with strong angles and lines will add definition to your face and downplay the fullness in your cheeks. Look for vibrant prints, patterns, and colors, and statement-making embellishments that add contrast; a clear or thin bridge will make your eyes appear wider. Finally, choose a style with adjustable nose pads to keep the frames from resting directly on your cheeks.

Celebrities with a round face include Michelle Williams and Aziz Ansari.

The Square Face

The glasses wearer with a square face has a strong jawline and angular features; if this describes you, choose thinner frames with lots of curves for contrast and to soften the angles in your face. When you choose frames with characteristics opposite those of your face shape, you won't exaggerate an already-angular look.

Round, oval, or cat-eye frames complement a square face—their curved lines will help lengthen and soften your features. Opt for a glasses style with rims wider than they are tall, in a neutral color—beige, cream, or taupe—to make your face appear slimmer and softer.

Celebrities with a square face include Angelina Jolie and Justin Timberlake.

The Oval Face

Many consider an oval face the ideal shape because its proportions are balanced, with a narrow forehead, high cheekbones, and a narrow chin. The glasses wearer with an oval face should choose frames as wide as or slightly wider than the broadest part of the face. Glasses with detailed embellishments also look great with the high cheekbones typical of an oval face.

Just about any pair of eyeglasses will flatter your oval face. Choose a retro cat-eye, a square, or a round frame with on-trend details; or opt for the classic and versatile rectangular silhouette to flaunt a sophisticated, professional look. Really, anything goes—the only tip for the glasses wearer with an oval face is to resist detracting from the natural balance of your features. Your proportions are already even, so consider carefully when choosing oversized frames.

Celebrities with an oval face include Emma Watson and George Clooney.

The Heart-Shaped Face

The two most distinguishing features of a heart-shaped face are high cheekbones and a jawline that tapers to a defined chin. Your face resembles a heart in the sense that its widest part is at the top and its narrowest at the bottom (like an inverted triangle). If you have a wide forehead, high cheekbones, and a narrow, pointed chin, your face is heart shaped.

Look for frames that minimize the top of your face and make your chin look wider—choosing a style wider than your forehead will help achieve both. And decorative accents at the endpoints of the frame (think cat-eye silhouettes or Ray-Ban's Clubmaster) will help draw the eye away from the forehead. Frames in light colors or with detailing, like a tortoise or floral pattern, will help soften your features. The heart-shaped face is versatile, so many glasses styles will suit you.

Celebrities with a heart-shaped face include Halle Berry and Ryan Gosling.

The Oblong Face

An oblong face is long and slender, and may have high cheekbones, a long nose, and a tall forehead. Choosing frames with tall rims will help create balanced proportions on an oblong face. Also, broad rims with color-accented tops or decorative temples will help add width to your oblong face.

Celebrities with an oblong face include Meryl Streep and Will Smith.

The Diamond-Shaped Face

Characterized by broad, distinctive cheekbones, parallel narrow eye lines, and narrow jawlines, the diamond face shape is the rarest of all. Somewhat similar to the heart-shaped face shape because of its full cheeks, the diamond-shaped face is actually a silhouette all its own. Once you've identified this shape as yours, focus on eyeglasses with angular, edgy elements to complement the angular features of your face. This will soften the cheekbones and draw attention directly to your eyes. Wider frames will balance your look and lend a dramatic, stylish touch to your features. Avoid narrow eyeglass frames, as they will further emphasize your narrow eye line.

Celebrities with a diamond-shaped face include Megan Fox and Ryan Reynolds.