Firstly it is important to follow the shape of your face … not choose a disproportionate pair of sunglasses if you have a tiny little face also be aware about your skin tone and your hair color.
Here is a very useful brief summary for you to help you have the perfect sista’s style.
Oval-Shaped Face Report
An oval-shaped face can wear practically any frame, so experiment with a variety of frame shapes to find the perfect look. They are characterized by a strong, prominent jaw line, square chin and broad, deep forehead. Because square faces are so angular, try round or oval glasses to soften and add contrast to the face.
You might want to start with rectangular or wayfarer frames. People with oval faces often have smaller features, so make sure your frames are in proportion and don’t overpower your face.
Square-Shaped Face Report
Square-shaped faces are usually proportional in length and width. They are characterized by a strong, prominent jaw line, square chin and broad, deep forehead. Because square faces are so angular, try round or oval glasses to soften and add contrast to the face.
Round frames are perfect for creating curves and softening square or angular faces.
Gently curved oval frames help minimize angles and lengthen a square face.
Round-Shaped Face Report
Get a good angle on your round face. A rounder face has an equal width and length and is characterized by soft curves with few angles, if any. As a general rule, a balanced face looks best, so people with rounder faces should select angular frames to help sharpen and add definition.
Angular frames with rectangular or geometric shapes create balance and add definition to a round face. Rectangular styles make a round face look slimmer. Frames that are more horizontal than they are vertical make round faces appear longer and thinner
Heart-Shaped Face Report
A heart-shaped face is characterized by a wide forehead, narrower jaw line, high cheekbones and a narrow chin. Round frames in lighter colors balance and soften a wide forehead. Frames that are wider at the bottom than the top help offset the narrow chin.