0.80 Ct. Reddish Orange Tourmaline from Ceylon (Sri Lanka)

This transparent 0.80 carat cushion shaped reddish orange tourmaline is presented by The Natural Gemstone Company, and it exemplifies precision cutting and natural beauty. The stone measures 6.28 by 5.87 by 3.73 millimeters, and it is faceted in a mixed brilliant style that marries the scintillation of brilliant facets with the color enhancing properties of step facets. Clarity is described as very very slightly included when evaluated at eye level, indicating that the stone is effectively eye clean with only minute internal features visible under close inspection. Color intensity is classified as intense, and the hue reads as a warm reddish orange that shows dynamic shifts under varying light angles. Polish is excellent, and the gemstone has not been subjected to any enhancement, originating from Sri Lanka Ceylon, a proven provenance that supports the stone s natural character.

The cutting design is the technical heart of this gem, and the mixed brilliant execution has been calibrated to the optical constants of tourmaline. Tourmaline typically has a refractive index in the range of approximately 1.624 to 1.644, and the cutter has set pavilion angles to optimize total internal reflection relative to that index, drawing maximum return from incident light. The crown uses a brilliant facet arrangement to create high contrast scintillation across the face of the stone, while the pavilion incorporates modified step facets to deepen perceived color and to reinforce even light return. The result is a stone whose facet junctions are crisp and whose facet proportions maintain a balance between flash and color saturation. Measured against its average diameter of about 6.075 millimeters, the depth of 3.73 millimeters yields a depth to diameter ratio of about 61.4 percent, a proportion that supports both lively brilliance and full color presentation in a cushion form.

Optically the tourmaline exhibits the attributes one expects from a high quality reddish orange example, with intense saturation and lively pleochroism that reveals more red oriented tones from some angles and more orange from others. The mixed brilliant cut mitigates windowing and promotes even color distribution, while the step influenced pavilion facets concentrate tone toward the center to avoid a washed out appearance. Tourmaline s dispersion is modest compared to gemstones with higher fire, so the perceived vitality comes largely from well executed facet geometry, high contrast scintillation, and deep saturation rather than from spectral fire. The excellent polish ensures that light transmission is unimpeded, that facet planes are reflective and mirror sharp, and that surface luster enhances the apparent transparency across all orientations.

From a clarity and craftsmanship perspective, the stone is exemplary. The very very slightly included grade at eye level means inclusions are minimal, localized, and do not interrupt the clean window through the table under normal viewing. Under magnification these internal features can be observed, which supports accurate grading, yet to the unaided eye the pavilion and crown present a visually seamless field. The cutter s attention to symmetry and facet alignment yields even facet junctions and consistent bezel and pavilion interactions, which is apparent when rotating the stone, because flashes remain uniform and no facet appears misaligned. The girdle and facet edges are finished to complement setting work, enabling precise prong placement or a tight bezel wrap without compromising the stone s proportions or optical performance.

For the technically minded buyer and the jeweler seeking a reliable center stone, this 0.80 carat cushion tourmaline provides a combination of natural color, optical engineering, and finishing that enhances its beauty from every angle. With a hardness in the range of 7 to 7.5 on the Mohs scale, it offers sufficient durability for fine jewelry with standard wear, while still benefiting from prudent care that avoids abrasive or high heat environments. The absence of treatment means the color and clarity are wholly natural, and provenance from Sri Lanka Ceylon is documented by The Natural Gemstone Company as part of our quality statement. Whether set as a solitary showcase or integrated into a refined cluster, the stone s mixed brilliant faceting, calibrated proportions, and exceptional polish ensure that each tilt and rotation reveals depth, saturation, and scintillation in equal measure, reinforcing its appeal to connoisseurs who value technical finesse and authentic gemological integrity.