Tourmalines have a wide variety of exciting colors with one of the widest color ranges of any gem. Tourmalines not only show every hue of the rainbow, but also an incredible range of color saturations and tones—from expensive electric blues to affordable olive greens.
With all the amazing colors of tourmaline there is a color for every preference. While highly saturated colors without dark black areas are the most valuable, less saturated “earth” colors have become popular.
Tourmalines often grow in an environment rich in liquids, and some of those liquids are often captured as inclusions during crystal growth. The most typical inclusions resemble thread-like cavities parallel to the length of the crystal. If cut as a cabochon these may cause a cat’s eye effect.
Rather than cutting every tourmaline lengthwise, many cutters orient a fashioned gem based on its depth of color. To darken pale rough, they orient a gem’s table perpendicular to the crystal’s length. To lighten dark rough, they orient a gem’s table parallel to the crystal’s length.
Tourmaline is a relatively durable stone, that being said it should be worn and stored with care. Do not wear your Tourmaline Jewelry while engaging in strenuous activity. Store them separately from other jewels to avoid chips and scratches in its own box or bag. It is imperative to limit the amount of direct sunlight or heat the Tourmaline is exposed to, over time, this can cause it's color to fade. It is recommended to store it in a dark box away, absent of direct light. Warm, soapy water is the best method for cleaning tourmaline. The use of ultrasonic and steam cleaners is not recommended.