Diamond

Diamond is an extremely hard, clear gem which can colored blue-white, deep blue, yellow or pink and has great rainbow luster. It is the hardest of gemstones and can be used to engrave almost anything, but is slightly brittle. Diamonds are found throughout the northern mountains but nearly always in deep mines accessible only by the underground-dwelling races. Diamonds are used in such items as the helm of brilliance and sometimes powdered to use in magical writings. A typical specimen has a base value of 5000gp