The history of this rare stone is documented in Paraiba: The Legacy of a Color, written by Kevin Ferreira, a gemologist and specialist in this specific tourmaline through his family's involvement ...

October has two birthstones: opal and tourmaline. Opal is the traditional birthstone for October. It is believed the stone was discovered in India and given the name "upala," or "precious stone ...

However, that ring — an oval-shaped tourmaline stone accented by a platinum band — took a backseat to a second ring she wore with the look. The jewelry, which appears to be a diamond ring ...