Topaz of all different colors are used in jewelry, in rings, earrings, necklaces, pendants, and bracelets. The blue, orange, and pink colors are most often cut as gemstones, and colorless Topaz is becoming increasingly popular as an inexpensive Diamond simulant. Gigantic gems and faceted spheres are cut from huge flawless crystals, and these make exquisite and exclusive collectors items. Topaz is rarely cut into cabochons.
Topaz is the traditional birthstone for November.
With the exception of Imperial Topaz, all the variety names below are trade names that were coined by dealers in the jewelry trade. These names have become widely used despite them being names made up by jewelers in modern times. There are also several additional made-up variety names sometimes given to different forms and colors of Topaz. The list below only describes those names that have become terms used extensively in the jewelry market.
Azotic Topaz – Orange-pink Topaz with a rainbow-like color effect. Its color is synthetically colored by film deposition of an extremely thin metallic layer over the top of the gemstone. Azotic Topaz is named by the company that introduced this, Azotic®.
Imperial Topaz – Lustrous golden orange-yellow, orange-brown, or orange-pink variety of Topaz and is its most valuable gem form.
London Blue Topaz – Topaz with a deep sky-blue color. It is darker in tone than Swiss Blue Topaz.
Mystic Topaz – Multicolored Topaz with a rainbow-like color effect. Its color is synthetically colored by film deposition of an extremely thin metallic layer over the top of the gemstone.
Rutilated Topaz – Topaz with yellow needle-like inclusions of the mineral Limonite. Rutile Topaz is very similar in appearance to Rutilated Quartz, hence the name Rutile Topaz. However, the name is a misnomer, since unlike Rutilated Quartz which has inclusions of the mineral Rutile, the inclusions of Rutile Topaz are not Rutile but rather Limonite.