Asscher-cut diamonds are square in shape with cropped corners. They are similar in appearance to the emerald-cut. Asscher-cut diamonds are cut for clarity rather than sparkle. They are known for their Hall of Mirrors effect and have an X shape at the center of the table.

If you opt for an Asscher cut, you have a keen eye for style. You want to stand out from the crowd with an engagement ring that will attract lots of admiration.

No, the most expensive diamond shape is the round-cut diamond. 

Asscher-cut diamonds are step-cut diamonds, meaning they are cut for clarity rather than sparkle. Asscher-cut diamonds won't sparkle much, but you can increase the sparkle of your ring by choosing a sidetone setting, a halo setting, or a three-stone setting.