You can`t cut a topaz the same as a diamond. If you do, it will rip the topaz apart. You have to use a different machine, different pressure. You have to know exactly what stone you`re working with.

The Smithsonian has acquired an extraordinary 48.86-carat red topaz for the National Gem Collection. The Whitney Flame Topaz is one of the finest imperial, or “precious,” topaz gemstones in the world, ...

A flawless blue topaz gemstone, said to be the largest of its kind, is set to go on display at London's Natural History Museum.

LONDON - A flawless blue topaz gemstone, said to be the largest of its kind, is set to go on display at London's Natural History Museum. The Ostro stone weighs around 2 kg (4.4 lb) and will be ...