6.09 Ct. Cabochon Tourmaline from Mozambique

The Natural Gemstone Company presents a single, translucent green tourmaline, weighing 6.09 carats, and carefully shaped as an oval cabochon. This specimen measures 11.98 by 9.93 by 5.67 millimeters, and its dimensions yield a classical oval proportion with a length to width ratio of approximately 1.21 to 1. The gem exhibits intense color intensity, with a saturation and tone that read as a vivid green under standard daylight conditions. Originating from Mozambique, this tourmaline is unenhanced, preserving the natural character of its color and internal features, and it is finished with an excellent polish that enhances surface luster and light transmission.

The cutting style is a high dome cabochon, deliberately chosen to maximize the visual depth of color and the stone s translucency. The dome height is substantial relative to the width, measuring approximately fifty seven percent of the width, which produces a pleasing domed profile and contributes to the perception of depth within the body of the stone. The oval outline is symmetric with well controlled bevels at the girdle, allowing secure seating in a variety of mounting styles, and the base is smoothly convex to preserve optical continuity. The cabochon form emphasizes color saturation rather than faceted brilliance, and this specific cutting decision was guided by the rough s color zoning and inclusion pattern to present the most uniform and intense green to the viewer.

Clarity is graded as slightly included when examined at eye level, and the inclusion suite visible in imaging and in hand consists of fine stringers, minute natural fissures, and isolated particulate areas typical of Mozambique tourmaline. These inclusions are stable, internal, and intrinsic to the crystal, they do not reflect synthetic treatment, and they are part of the gem s natural fingerprint. The inclusions are oriented and confined in such a way that they contribute character without significantly disrupting the stone s translucency. Because no clarity enhancement or filling has been applied, the inclusions remain unaltered and safe for conventional jewelry wear, while also offering reliable indicators for origin and natural formation processes.

Optically, this tourmaline displays strong light transmission for a translucent cabochon, with subtle internal reflections that animate the color when the piece is tilted under directional lighting. The intense green shows slight variation from vivid medium green to a deeper, more saturated green depending on viewing angle and background, consistent with tourmaline s anisotropic absorption properties. Pleochroism in green tourmaline can manifest as variations between grass green and slightly bluish green tones, and this cabochon presents a harmonious balance between those tones, enhancing wearer appeal under a range of lighting. The refractive index of tourmaline in this compositional range supports good interaction with light, and the combination of substantial dome height and excellent polish yields soft internal glow rather than facet driven sparkle.

Craftsmanship reflects methodical preforming, precision cabbing, and progressive polishing stages that culminate in a mirror like surface. The cutting process involved orienting the rough to minimize prominent inclusions while preserving maximum weight, and the dome was developed with attention to symmetry across the long axis to prevent optical flattening. Final polishing was executed to bring the surface to a high gloss, improving apparent color saturation and smoothing the transition between dome and base for optimal mounting. As supplied by The Natural Gemstone Company, this unenhanced Mozambique tourmaline is suitable for collectors and designers who favor natural character and intense color in a cabochon form, and it is particularly well suited to bezel settings, artisan cabochon mounts, and any application where a stable, luminous green focal stone is desired.