Tourmaline – Natural, Faceted, Brown, 7.07 ct

Yellow, Mn-rich tourmalines from all over the world, like this 7.07-ct. oval-cut gem from Madagascar, have been called tsilaisites. However, they don't have the necessary chemical composition to qualify as examples of this distinct species. © The Gem Trader. Used with permission.

Article: Tourmaline Gem, Price, and Jewelry Information

Credit: The Gem Trader