Local TermsSinhalese/Tamil Used in the Gem Industry Sri ...
All the local words (italics) used on this page are in Sinhalese language unless stated otherwise.. Illama refers to gem bearing gravel while Goda illama refers to gem bearing gravel that is located just below the surface of the earth.. Illam kamatha refers to a small area reserved for placing the illama prior to washing. A steel rod is also used to determine the depth of the illama.