Discover the allure of this exceptional 15.90-carat natural rubellite tourmaline, a gemstone prized for its vivid crimson brilliance. Cut into an elegant oval shape measuring 18.4 x 15.7 x 8.9 mm, this faceted stone captures light with remarkable depth and clarity. Completely untreated and naturally formed, its slightly included character serves as a testament to its authenticity. Perfect for the discerning collector who values genuine, unenhanced gemstones of superior quality.