The rarest face shape is the diamond face shape.
A diamond face shape is a face shape where a person has a narrow forehead, wide cheekbones and also a narrow chin.
Diamond shaped faces are often narrower at the eye line and the jaw line along with high and often dramatic cheekbones.
Other rare and less common face shapes are oblong face shapes, kite face shapes, heptagon face shapes and teardrop face shapes.
The pyramid face shape is also an unusual face shape although it's not as rare as the diamond face shape.
Some other rare and uncommon face shapes are rectangular face shapes, triangular face shapes, inverted triangle face shapes, trapezoidal face shapes and hexagonal face shapes.
The oval face shape is often seen as the most attractive face shape.
The oval face shape is considered well balanced as well as versatile and it's proportions are even and makes it suitable for a wide range of hairstyles and makeup styles.
The square face shape is also an attractive face shape, that has defined jawlines and cheekbones and is often associated with strength and confidence.
Round face shapes are also attractive and has softer features which can be seen as youthful and approachable.
Heart shaped faces are also considered attractive and has wider foreheads and narrow chins, and can also be seen as feminine and delicate.
And the diamond face shape which is a rare face shape is also attractive and can be seen as dramatic and sculpted.