The present invention a novel 80 facet diamond having 16 hearts & 16 arrows and the process of manufacturing the same. In 57 facets round cut diamond, one normally starts faceting from the girdle (outer side of round cut) of a diamond. On the other hand in 80 faceted cut diamond one starts faceting process from the table side (centre portion of round cut). Further, the bottom faceting in 57 facets round cut diamond starts from the culet (the most pointed part of a round cut diamond). The same even goes with 80 facet cut diamond but it ends at the cutlet itself. Thus by using a specially devised tang and skilled worker one achieves 80 facet cut diamond without losing extra weight and giving additional faceting adding brilliance, lustre, fire and value to the diamond. Also a very beautiful flower in flower design is achieved with the help of extra faceting done on the top side of a diamond.