3.89 Ct. Cabochon Tourmaline from Mozambique

One beautiful transparent 3.89 carat cushion shape reddish brown tourmaline is offered by The Natural Gemstone Company, a gem that measures 9.10 x 9.06 x 6.21 mm and displays a sugar loaf cut that emphasizes depth of color and soft optical rounding. The piece is transparent with a clarity grade of slightly included when evaluated at eye level, showing modest internal features that do not significantly hinder the gem s overall transparency or visual appeal. Color is classified as medium intense, a warm reddish brown that reads richly both face up and when viewed at slight angles, and the stone has an excellent polish that gives its surface a lively, glassy finish. Enhancement assessment is none, indicating this tourmaline is natural and untreated, and origin is Mozambique, a source increasingly recognized for fine colored tourmalines.

From a gemological standpoint this tourmaline exhibits many of the attributes educated buyers consider when evaluating colored stones. Tourmaline belongs to a complex mineral group that commonly shows pleochroism and a wide range of chemical compositions, and colored varieties such as this reddish brown example typically owe their hue to varying proportions of iron and manganese within the crystal structure. Optical properties of gem tourmaline typically place the refractive index between 1.624 and 1.644, and specific gravity and hardness characteristics contribute to practical considerations for jewelry. The sugar loaf cut used here is a thoughtful cutter s solution to a combination of color and clarity, producing a domed profile that concentrates color saturation and minimizes the visual impact of internal characteristics. The result is a stone that appears fuller and more saturated face up, while the excellent polish maintains bright reflections and a smooth tactile surface. Slight inclusions are visible to a trained eye under close inspection, but they do not compromise structural integrity, and in many cases inclusions are valued as proof of natural origin and add character to the gem.

The provenance of this tourmaline further enhances its appeal. Mozambique has emerged as a reputable source for high quality tourmalines, producing a variety of attractive colors that command attention in the contemporary market. For the educated buyer provenance matters because it can correlate with typical crystal chemistry and expected value ranges, and an untreated 3.89 carat stone with a medium intense color and excellent polish occupies a desirable position in the marketplace. Value drivers for this piece include weight, balanced proportions, natural color without enhancement, and the fact that the sugar loaf cutting approach enhances perceived saturation. Collectors and designers often prize stones that combine natural, documented origin with a pleasing balance of color and clarity, and this example offers those attributes. Compared with smaller or heat treated material, an untreated tourmaline of this size and color from Mozambique is likely to hold its appeal and resale desirability over time, especially when set in quality jewelry that preserves and displays its color.

Practical considerations for use and care are straightforward and should reassure prospective purchasers. Tourmaline s hardness range makes it suitable for a variety of jewelry types, including rings, pendants, and earrings, provided standard precautions are observed to minimize abrasive or impact wear. A cushion shape with sugar loaf profile works especially well in bezel settings and low profile prongs where the domed face is protected and the color can be showcased, though experienced designers can also create open settings that allow light to interact with the stone and reveal subtle pleochroic shifts. Cleaning is best accomplished with warm water, mild detergent, and a soft brush, avoiding sudden temperature shocks and harsh chemicals. For buyers interested in documentation we recommend independent gem testing when required for insurance or provenance records, and The Natural Gemstone Company is happy to assist with further close up photography, measurement verification, or arranging laboratory reports on request. This reddish brown cushion tourmaline, at 3.89 carat, with dimensions 9.10 x 9.06 x 6.21 mm, sugar loaf cut, slightly included clarity at eye level, medium intense color, excellent polish, no enhancement, and Mozambique origin, represents a well balanced and compelling choice for collectors and designers who value natural color, honest grading, and thoughtful cutting.