Asscher cut diamonds were first created in 1902 by a Dutchman called Joseph Asscher, one of the most famous diamond cutters of the 20th century. Along with his brother Abraham, Joseph formed the Asscher Diamond Company which is known today as the “Royal Asscher Diamond Company”. Asscher cuts were a popular Art Deco cut of diamond and are similar in shape to the modern emerald cut. The Cullinan I diamond and the Cullinan II diamond are two of the most famous asscher cut diamonds in the world. They are both part of the British crown jewel collection today and were originally cut from the same 3.105ct rough stone.