Green gemstones are believed to symbolize harmony and healing — only part of the reason they’re so expensive. Green reminds people of nature, so it’s only natural that green gemstones are believed to ...

Dealers frequently describe these gems as “oily” or “olive” green. Their prices are much lower than the prices for fine green tourmaline or brighter bluish green tourmaline. Blue tourmaline can range ...

Chip Clark, courtesy Smithsonian Institution, National Museum of Natural History Somewhere in Brazil in the 1500s, a Spanish conquistador washed the dirt from a green tourmaline crystal and confused ...