10.71 Ct. Rubellite Tourmaline from Madagascar

This transparent rubellite tourmaline weighs 10.71 carat, and presents an elegant oval shape measuring 16.85 x 11.86 x 7.65 mm. The gem displays a vivid pinkish red color, with clarity graded as very slightly included at eye level, and an excellent polish that enhances its surface finish. Cut as a mixed brilliant, the stone combines a faceting scheme designed to emphasize both color saturation and light return, while maintaining a pleasing overall silhouette. There has been no enhancement applied to this specimen, and its natural origin is Madagascar. The Natural Gemstone Company documents the precise specifications, and the gem’s transparency and vivid tone reflect the material quality typical of well formed rubellite from this region.

The mixed brilliant cut is deliberately employed to optimize the rubellite’s interaction with light, balancing pavilion facet geometry and crown facet proportions to encourage efficient internal reflection and scintillation. The smaller, numerous facets on the crown act to break incoming light into multiple internal paths, producing a lively, distributed brilliance under varied lighting. The pavilion facets are cut to angles that favor total internal reflection, returning light through the crown and reinforcing both brightness and color depth. The oval outline influences the directionality of light, creating elongated flashes of brilliance along the length of the gem, while the mixed brilliant scheme mitigates large windows and dark zones, preserving uniform color saturation across the table and girdle. With the clarity graded as very slightly included at eye level, internal features have minimal impact on the light path, and the excellent polish ensures that surface scattering is negligible, allowing the cut geometry to perform as intended. The result is a rubellite in which the mixed brilliant design amplifies the inherent vivid hue, renders lively scintillation during movement, and sustains a high degree of return of white light and colored flashes, offering a precise balance between brilliance, color intensity, and visual depth.