1.24 Ct. Violet Sapphire from Ceylon (Sri Lanka)

This gemstone is a transparent, 1.24 carat oval sapphire with exact dimensions of 7.41 by 5.89 by 3.70 millimeters, produced in Ceylon Sri Lanka, and presented by The Natural Sapphire Company. The stone exhibits a mixed brilliant cut fashioned to balance face up brilliance with weight retention, and it has an excellent polish that yields crisp facet junctions and smooth facet planes. The length to width ratio is approximately 1.26, providing a classic, slightly elongated oval outline that sits elegantly in most ring settings. The depth to average diameter ratio is approximately 55.6 percent, a proportion that favors strong light return while maintaining good spread for its carat weight. The sapphire is unenhanced, with no heat treatment, a provenance that appeals to collectors seeking natural color and integrity.

The mixed brilliant cutting style on this oval combines a brilliant crown geometry with a modified pavilion, designed to prioritize scintillation and contrast pattern. Crown facets are cut with angles and table proportions to capture and refract incident light across the table and crown facets, while the pavilion facet layout emphasizes return of light toward the observer rather than loss through the pavilion. The facet symmetry and excellent polish minimize internal light scattering, so contrast and pinpoint scintillation remain lively as the stone moves. The table is proportioned to maintain a strong central flash without overwhelming the peripheral facet reflections, and the girdle appears consistent in thickness which aids secure and precise mounting. These cutting choices are intentional for Ceylon corundum, which often benefits from slightly shallower pavilion depth to maximize face up brilliance in medium colored material.

Color and clarity characteristics are central to the performance of this violet sapphire, the hue registering as a true violet with cool blue undertones and a medium intensity saturation that reads vivid under daylight and controlled showroom lighting. The medium intensity allows the stone to exhibit both depth of color and transparency, avoiding the darkening that can impede brilliance in higher saturation specimens. The stone is graded very slightly included at eye level, indicating minor natural inclusions that are not distracting to the unaided eye in normal viewing conditions, and that do not materially affect durability. These inclusions are consistent with natural Sri Lankan sapphires and often act as internal textures that can enhance the gem's character under magnification. Because the sapphire is unheated, the color distribution and inclusion patterns are natural, and the gem retains the premium associated with untreated origin material.

In comparative optical terms this violet corundum performs differently from other gemstones in its broader category, both within corundum varieties and relative to other popular colored stones. Corundum has a refractive index in the range of approximately 1.762 to 1.770, which produces stronger light return and more apparent brilliance than stones with lower refractive indices such as tanzanite, which is approximately 1.691 to 1.700, and topaz, which is approximately 1.610 to 1.644. Spinel, with a refractive index near 1.712 to 1.736, can approach corundum in brilliance but typically lacks the degree of pleochroism seen in many sapphires, so a violet sapphire can display subtle shifts from more violet to more blue when tilted, a quality that adds visual complexity. Dispersion or fire in corundum is low, approximately 0.018, so the perceived sparkle is driven primarily by facet contrast and refractive behavior rather than rainbow flashes, this makes cutting precision and polish paramount for achieving an engaging visual performance. Compared to heat treated sapphires, an untreated Ceylon violet will retain natural hue zoning and may present slightly different light behavior due to unaltered internal features, which many connoisseurs prefer.

For practical application the stone’s proportions and optical behavior recommend settings that maximize top light exposure and secure the stone without obscuring the crown. A four prong mounting with slightly raised galleries or a halo design will enhance apparent size and allow movement to generate scintillation, while a low bezel can be used when protection of the girdle is a priority, though that will reduce some peripheral light entry. The unheated origin from Ceylon enhances collectible value and provides a clear narrative for bespoke commissions, and the medium weight of 1.24 carat makes the gem versatile for engagement rings, pendants, or paired accent stones. The Natural Sapphire Company stands behind the natural origin and the stated gemological character, and we can provide further cut diagrams, facet maps, and setting recommendations to ensure the final jewelry piece optimizes light return and showcases the distinctive violet tone.