The grades are set based on shape, level of purity, and general esthetics.
Citron's sorting process occurs at the Etrog fields in Kfar Chabad near Rishon Lizion. 
All of our Etrogim are hand-selected with gentle care and astute awareness. Here at Citron, we are committed to the satisfaction of our customers and we pride ourselves by the consistent quality of our Etrogim.