The Emerald cut is differentiated f

The Emerald cut is differentiated from the Octagon cut by its equidistant steps on the pavilion.
The flat planes of the outside edges allow for a variety of shapes. Generally, the length-to-width ratio should be 1.5:1 to 1.75:1.
With this cut, color plays a very important role in the beauty of the gemstone. Color tends to show very dramatically in Emerald cut gemstones.
The Emerald cut was developed specifically for Emeralds to reduce the amount of pressure exerted during cutting and to protect the gemstone for chipping. Today, modern cutting techniques make this less important and it is used for a wide variety of gem types.