Zircon Gemstones

There are many benefits of zircon – it is used for its medical as well as astrological value. The gemstone is also widely used for its healing properties and there is also some mythological value associated with the stone.
The most beautiful and precious gem quality stones are commonly heat treated. This is to create lovely brilliant stones with an intense fiery brilliance. These are often yellow, green, blue or may be colourless.
This stone embodies a strong healing energy and has an effective spiritual grounding vibration. They are known as a 'stone of virtue' as they help to balance the virtuous aspects within you.
Heat treating makes it hard to ascertain the actual original colour of the stone, but should not effect its metaphysical qualities. After all stones are naturally heated in the earth over the millions of years it takes for them to form.
Any colour of Zircon Crystals may potentially have an effect on your intuitive abilities  as well as aiding you to develop stronger psychic abilities.
These stones are known to help you to bring your visions into reality.
The majority of this  information has been taken from http://www.healing-crystals-for-you.com .