Mystic topaz was first seen and introduced to the population during Jewelry Fair in Hong Kong in 1998 by Azotic Coating Inc. They used natural colorless topaz gemstones and using their coating technology, coated those natural gems with thin titanium film in a process known as chemical vapors disposition. As a result, they created an amazing rainbow looking gemstones with deep, unusual and interesting color. This enhancing treatment of the stones is not permanent so you as a customer need to pay attention to your jewelry.