What does Mystic Fire Topaz look like? My son-in-law thinks he's the chef of the family, here's his recipe:

Take a glass bowl, fill with some water and a few drops of motor oil and place in sunlight. See the sheen? Now take that and crystalize it, facet it, and mount in a fashionable pendant. That's a recipe for beautiful jewelry.

This pendant has one heck of a bail.  It should fit over most 6mm Omega chains.  With gentle filigree running down both sides of the bail, and a smooth shiny center, the gold is as much an eye catcher as the stone. 

Mounted in this pendant we have Mystic Fire Topaz.  It has the purplish blueish greenish colors and checkerboard cut.

Wear it to work, or wear it out for the night, you will enjoy owning this one!  And if not, remember that I have an unconditional guarentee.