1.00 Ct. Violet Sapphire from Ceylon (Sri Lanka)

This oval shape violet sapphire presents as a precise one point zero zero carat gemstone, measuring seven point four four by five point four seven by three point two six millimeters, from Ceylon Sri Lanka, and it is offered by The Natural Sapphire Company. The stone is transparent, with intense color intensity that reads strongly violet under neutral daylight, and the clarity grade is very very slightly included when evaluated at eye level. The gem is cut in a mixed brilliant style, combining a brilliant facet arrangement on the crown with a tailored pavilion geometry, and the overall polish is rated excellent. Enhancement status is no enhancement, the stone is natural and unheated, and the provenance from Sri Lanka is consistent with the lively, saturated violet tones and the fine crystalline habit seen under magnification.

The mixed brilliant cut used in this oval was selected to maximize return of light while preserving weight and ideal proportions for a one carat format. The crown carries a traditional brilliant schema, with a table facet sized to balance face up size and sparkle, star facets that create micro scintillation, and bezel facets that control dispersion and return contrast. The pavilion is modified to a shallow to medium depth, with carefully proportioned main facets that act as light conduits, reflecting pulses of internal light back through the crown. This combination produces both broad flash and pinpoint scintillation, the broad flashes contributing to the evenly distributed violet tone, and the pinpoint scintles giving the lively, dancing sparkle as the gem moves. The oval outline has been optimized for symmetry and length to width balance, preserving bow tie minimization and ensuring that facet junctions meet precisely to maintain crisp light return.

At the material level, corundum is inherently suited to this performance, due to its high refractive index in the region of one point seven six to one point seven seven, its modest birefringence of approximately zero point zero zero eight, and its low dispersion near zero point zero one eight. Those optical constants mean that well formed facets will produce saturated color without excessive fire, and the mixed brilliant architecture transforms the sapphire crystal into a radiant optical engine. The stone shows a subtle pleochroic behavior, with the violet hue shifting slightly toward a cooler blue violet on certain axes, this phenomenon contributes to the depth and complexity of color as light penetrates and exits along different crystallographic directions. The clarity evaluation of very very slightly included at eye level indicates that inclusions are minute and do not interfere with light transmission, the excellent polish further minimizes scattering at the surface, so that internal reflections remain clean and bright. Because the piece is untreated, the internal zoning and growth features are natural and contribute to the unique character that differentiates this sapphire from heat treated material.

Beyond its optical virtues, the physical and practical characteristics make this sapphire a versatile choice for fine jewellery. Corundum rates nine on the Mohs scale, providing exceptional resistance to abrasion for daily wear in engagement or statement rings, pendants, or bespoke settings. The dimensions and oval silhouette allow for comfortable prong or bezel styles, and settings that lift the gem slightly will enhance pavilion light entry and maximize the scintillation described earlier. For those seeking contrast, cooler white metals will emphasize the violet saturation, while warm yellow or rose metals will add contrast and a vintage leaning aesthetic. At The Natural Sapphire Company we recommend that the mounting respects the mixed brilliant geometry, by permitting unobstructed access to the pavilion and by aligning the table parallel to the viewer when mounted, this preserves the symmetry based returns. The gem comes with documented origin and enhancement information, enabling confident selection for collectors and connoisseurs who value natural, untreated provenance and precision cutting.