Caroline Im is on a mission as unique as the precious stones displayed in the Lyda Hill Gems and Minerals Hall at the Perot Museum of Nature and Science. When Im leads tours through the glittering ...

Entry trends included some returning favorites like tourmaline, and a huge leap in entries in the “carving” category.

LONDON (Reuters) - 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 ...

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, ...

The traditional birthstone Topaz, along with the modern birthstone Citrine makes them the lucky birthstones. Topaz, also known as the “lover of gold,” is said to bring wealth and money. Citrine, on ...