2.73 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This fine Ceylon sapphire presents as a transparent oval, weighing 2.73 carats, with precise dimensions of 8.59 by 7.23 by 5.30 millimeters. Cut in a faceted, mixed brilliant style, the stone exhibits a vivid color intensity and an eye clean clarity grade when evaluated at typical viewing distances. The polish is excellent, producing crisp facet junctions and minimal surface distortion, and the gem has undergone standard heat treatment to enhance color uniformity and saturation. Sourced from Sri Lanka and offered by The Natural Sapphire Company, the sapphire’s overall proportions and finish reflect careful lapidary attention to both optical performance and practical wearability.

The geometric faceting of this mixed brilliant oval has been executed to maximize light play while preserving the gem’s weight and ideal proportions. The mixed brilliant style combines a faceted crown with a faceted pavilion configured to create repeated internal reflections, allowing light to enter, refract across successive facet planes, and return to the observer as brightness and scintillation. The crown facets act as primary entry planes for light, while the pavilion facets, arranged with deliberate symmetry and polish quality, function as controlled reflectors, channeling light back through the crown and producing a lively interplay of brilliance and contrast. The oval outline enhances the directional flow of light across the table and along the length of the stone, yielding a broad flash pattern that changes with movement, while the moderate depth of 5.30 millimeters supports strong return of light rather than loss to excessive pavilion depth. Because the sapphire is eye clean, there are no significant inclusions to interrupt these internal light paths, which allows the faceting geometry to perform at its designed effectiveness and produce a sustained, crisp sparkle.

Color and optical dynamics are intimately tied to the cutting geometry of this sapphire, and the vivid blue saturation is both intensified and nuanced by the mixed brilliant facet arrangement. Light entering the gem is selectively absorbed and scattered by the crystal lattice, and the faceting directs that exchanged light into layered flashes of deep blue and subtle lighter blue tones, creating visual depth and the sensation of a velvety, three dimensional color field. The combination of excellent polish and well executed facet junctions ensures that light transitions are clean, minimizing surface diffusion and preserving contrast between bright and dark areas, which in turn enhances perceived color richness. Practical considerations for mounting this 2.73 carat oval include settings that allow light to reach the pavilion, such as semi-bezel or prong styles, to maintain the stone’s dynamic light performance in everyday wear. For clients seeking a responsibly sourced, expertly cut Ceylon sapphire with balanced proportions and demonstrable optical sophistication, The Natural Sapphire Company can provide additional imagery and detailed viewing notes to assist in assessment and setting selection.