There's also the incredible 9,630-carat marquise-cut gem and a 15-pound blue topaz, both from Brazil. Texas also has a claim to the gem. The rare blue topaz that has sat at the governor's desk for ...

Besides yellow, the stone comes in a range of hues, including blue, pink, violet, brown and orange. Topaz is primarily mined in Brazil and northwestern Pakistan, the Geological Institute of ...

Each month has at least one representative gemstone. Here's what you need to know about November's birthstones.