Round

The most popular! Known for their sparkle, and the amount of light they reflect, this almost century old shape is a timeless classic. It can be set with a large variety of ring styles and provides nice flexibility in balancing diamond characteristics to stay in budget. 

Celebrity examples: Mila Kunis, Emily Blunt, Miranda Kerr

Oval

Similar to a round cut in its characteristics, the elongated nature of this shape can provide a nice visual trick to make your finger look slender. Beware of a bowtie though (a dark area/shadow that runs across the width of the diamond) as they are more common with longer shapes. 

Celebrity examples: Blake Lively, Hailey Bieber, Kourtney Kardashian

Pear

Sometimes referred to as a teardrop, this elegant shape showcases both beautiful round and pointed features. It can hide inclusions well and offers impressive brilliance. Keep an extra eye out for good symmetry and minimal bowtie for this shape. 

Celebrity examples: Cardi B, Sophie Turner, Victoria Beckham

Marquise

A very long and narrow eye-like shape with pointed ends. When positioned vertically, this shape can give the illusion of a flattering size and thinner finger. Due to its more sharply pointed edges, this shape is more prone to breaking or chipping and should be well protected in the setting.

Celebrity examples: Portia de Rossi, Catherine Zeta-Jones, Ashlee Simpson

Princess 

A square cut diamond with pointed corners, resembling almost an inverted pyramid with four beveled sides. This shape can boast nice brilliance, but look out for the outer corners which sometimes show a more yellowish tint depending on the specific color grade. 

Celebrity examples: Jaime Pressly, Kate Bosworth

Cushion 

Often referred to as a pillow, this shape has rounded corners and large facets which add to its brilliance and fire. Cushions can either be square or rectangle in shape, with the more elongated shapes rarer to find. Be sure to learn about the two main types of cuts, antique and brilliant, to determine which you like better.

Celebrity examples: Sofia Vergara, Chrissy Teigen, Meghan Markle

Emerald 

A rectangle with cropped corners and a large open table. This shape gives off a unique “hall of mirrors” effect as light hits it, as opposed to the sparkle look other diamonds have. Given the long visible step cuts, you want to make sure this shape is eye clean since it doesn’t hide inclusions  well.

Celebrity examples: Demi Lovato, Beyoncé, Amal Clooney

Radiant

This rectangular shape features cropped corners and deeply cut facets in the pavilion (bottom) and crown (top) of the diamond which is often referred to as a ‘crushed ice’ look making the diamond look as if it's shimmering.

Celebrity examples: Jennifer Aniston, Drew Barrymore

Asscher

Essentially a square version of the Emerald cut, this distinct shape offers many of the same characteristics of an Emerald cut; however, with a slightly smaller table and more facets the light can reflect off of, it provides more sparkle. 

Celebrity examples: Pippa Middleton, Gwyneth Paltrow, Jessica Alba

Heart

The symbol of love! While this shape can vary in its length and width, there are no perfect dimensions as the choice is really based on personal preference. As long as you look for great symmetry, the shape should appear full and balanced. 

Celebrity examples: Lady Gaga, Nicki Minaj