3.99 Ct. Chrome Tourmaline from Tanzania

This transparent green chrome tourmaline weighs 3.99 carat, and measures 10.90 x 7.33 x 5.96 mm, offering a handsome presence for a single stone piece. The gem is fashioned in an emerald cut, a classic step cut that produces parallel facet arrays across the crown and pavilion. The clarity is graded very very slightly included, evaluated at eye level, indicating that the stone is exceptionally clean to the unaided eye and that any inclusions are minor and well contained. Color is described as vivid, demonstrating a saturated and even green that is characteristic of fine chrome tourmaline from Tanzania, and the polish has been completed to an excellent standard. No enhancement has been applied to this material, and its natural origin in Tanzania is documented. These specifications are provided by The Natural Gemstone Company, and reflect the gemological attributes observed in our assessment.

The geometric faceting of this emerald cut stone is responsible for its notable optical behavior, and the design has been executed to balance color saturation with maximum light play. The emerald cut employs broad, flat steps and elongated facets which channel light along linear pathways, producing pronounced flashes and ribbons of reflected light when the gem is viewed from different angles. The proportions of the table to the depth, together with the parallel arrangement of the step facets, control the internal reflection and refraction, and they have been tuned here to favor even color distribution and clarity visibility while allowing dynamic returns of bright specular highlights. The truncated corners and beveled edges reduce light leakage and contribute to stability in a mounted setting, while the pavilion steps are aligned to create repeated internal mirror images that enhance apparent depth without compromising the emerald cut character. Because the material is highly transparent and the polish is excellent, the faceting geometry translates the gem rough into a stone in which movement produces alternating bands of saturated green and lively brilliance, a performance that emphasizes both the vivid color and the precision of the cut.

In practical terms this chrome tourmaline is well suited for bespoke jewelry applications where the geometry of the stone can be featured, such as solitaire rings, bespoke pendants, or classic three stone designs, and it will perform particularly well in settings that allow light to reach the pavilion. The very very slightly included clarity grading means that the stone can be set with confidence for daily wear provided basic precautions are observed, including avoiding harsh chemicals, ultrasonic cleaning only after consultation, and removing the piece during activities that could expose the gem to impact. The dimensions and shape lend themselves to secure bezel or prong settings and to design treatments that emphasize the elongated rectangular silhouette. The Natural Gemstone Company supplies this item as a natural, unenhanced material from Tanzania, with full disclosure of weight, measures, clarity, color intensity, and cut grade to assist jewelers and collectors in design and appraisal decisions. For those evaluating optical performance, the stone demonstrates the advantages of carefully proportioned step cutting, and its geometric faceting allows maximum light play while preserving the integrity and natural beauty of the chrome tourmaline.