The Asscher diamond cut was developed in 1902 by jeweler Joseph Asscher of the Asscher Diamond Company. It was inspired by table cut style of cutting diamonds during the Renaissance period. It is very closely related to the emerald diamond cut in terms of facet patterns because it is also in step-cut style and sometimes has blocked corners, though it is, more often than not, square.
While many jewelers now cut in the Asscher style, this diamond cut had lost popularity between1930 and 2001. However, its popularity began to rise due to Hollywood’s love of the Asscher cut. In 2001, one jewelry company began to cut the Royal Asscher Cut, a brand-name style that is cut and sold by only one manufacturer in the entire United States, though non-patented Asscher diamond cuts are sold by many other jewelers. More stores, though, are carrying a traditional Asscher diamond cut. It is a popular cut for celebrity engagement rings , such as Kate Hudsons five carat ring and Reese Witherspoons 4.5-carat ring. Previously, Asscher cut jewelry could be found at estate sales and antique stores due to its low popularity. Any kind of Asscher cut diamond created before the popularity loss is very rare and more likely to still be found in an antique shop.
The flat facets of the Asscher diamond cut will create an amazing brilliance and let loose all of the diamonds fire and shine, but will also leave the jewelry visible to any flaws the naked eye might see.
Common characteristics of an Asscher diamond cut is a high crown, a small table, a slightly bulging pavilion, blocked corners and concentric square patterns reaching down to the culet. It is a fancy shape diamond cut, done by a jeweler along natural lines so as to maximize carat weight. An ideal length to width ratio is 1:1, though an exact ratio is up to the jewelry buyer. Because bigger diamonds are best for Asscher cut jewelry, it will also be more expensive. Some Asscher diamond cuts can get up to six carats.