Most fine imperial topaz rough hails from Ouro Preto. Learn about the Black Gold city and its orange & yellow imperial topaz facet rough.

Learn about Montana sapphire facet rough, its history, deposit locations, and why it’s become a favorite of gem lovers!

California Tourmaline is a dazzling representative of US facet rough. Learn about its history and relationship to other tourmaline.

The Songea sapphire is a rising star within the gemstone industry. Learn about the properties of these remarkable color change sapphires.