0.72 Ct. Tourmaline from Tanzania

One transparent pear shape green tourmaline, weight 0.72 carat, dimensions 7.52 by 4.77 by 3.46 millimeters, mixed brilliant cut, clarity very slightly included evaluated at eye level, vivid color intensity, excellent polish, no enhancement, origin Tanzania, offered by The Natural Gemstone Company. The stone is cut to a classic pear outline that combines an elegant profile with optimized light return in a fractional size that suits rings, pendants, and bespoke settings. The mixed brilliant facet scheme provides a balance between scintillation and color saturation, and the excellent polish on every facet edge preserves the clean transitions that are essential for crisp reflections and defined brilliance. The clarity description indicates only minor internal features that do not materially impede transparency under normal viewing conditions, allowing the stone to present full depth of tone and consistent internal light movement.

The characteristic sparkle of this tourmaline is rooted in its internal crystalline structure and optical behavior, attributes that differentiate it from many other green gemstones. Tourmaline crystallizes in a trigonal system with elongated prismatic habits and anisotropic optical properties, which means the stone interacts with light differently along different crystallographic directions. This anisotropy produces strong pleochroism, a phenomenon in which distinct color components emerge as the stone is rotated or viewed from varied angles, enhancing the perception of depth and internal activity. When light enters the well proportioned mixed brilliant cut, it encounters a series of precisely angled facets that redirect and multiply internal reflections. The combination of high transparency, minimal inclusions, and facet geometry allows light to traverse multiple internal paths before exiting, creating a lively network of flashes and color modulations rather than a single, flat reflection. The polished facet junctions reduce light leakage and preserve contrast between bright flashes and the richer, saturated green panes that result from the stone s natural absorption characteristics.

The interplay between refractive response, pleochroism, facet architecture, and polish produces a type of sparkle that reads as both vivid and nuanced, qualities that are particularly evident in daylight and warm incandescent illumination. In daylight the vivid green displays a cooler, more crystalline brilliance, with distinct pinpoints of scintillation at the facet edges. Under warmer light the same structural interactions emphasize the deeper green tones and a softer internal shimmer. Because this specimen is untreated, its visual behavior stems entirely from native chemistry and structure, making its light dynamics predictable and stable for long term wear. The stone s compact dimensions and pear silhouette concentrate these optical effects toward the pointed and rounded terminations in a way that enhances perceived size and movement on the hand, attributes that are apparent in staged scale photographs and in hand held examinations. The provenance from Tanzania adds a geological lineage that collectors and designers use to contextualize optical expectations. The Natural Gemstone Company provides this information to support informed selection, noting that the gem s mixed brilliant cutting, very slightly included clarity, vivid color intensity, excellent polish, and natural origin work together to produce a distinctive, exceptionally lively sparkle that is a direct expression of the tourmaline s intrinsic structure.