Tourmalines are found in an abundant array of colors. They offer a wide variety of choice for the discerning gemstone jewelry enthusiast. A complete collection of all the colors represents a fascinating quest for the knowledgeable seeker of Nature's bounty. Dark blue, blue-green and green Tourmalines are occasionally heated to lighten their color. Red Tourmalines (also known as Rubellites) and pink varieties are often heated and/or irradiated to improve their colors. Heat and irradiation color enhancement of Tourmalines are permanent.

Occasionally, Rubellite and Paraiba Tourmalines may have surface breaking fissures that are filled with resins and/or hardened resins. Care must be observed with these gemstones. Avoid exposing them to harsh abrasives and strong chemical solvents.