2.50 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 2.50 carat cushion shape blue sapphire is a study in precise cutting and material quality, with dimensions of 8.96 by 6.69 by 4.28 millimeters and a depth of about 55 percent, proportions that sit comfortably within the ideal range for a saturated yet lively gem. Cut to a mixed brilliant style, the pavilion employs step influenced facet geometry while the crown and table are executed with brilliant facets to maximize return of light and to preserve color saturation. The mixed brilliant approach on a cushion outline allows a larger apparent face up size relative to weight, while controlling windowing through careful crown height and pavilion depth relationships. The excellent polish reported for this stone enhances facet junction sharpness and reduces surface diffusion of light, which means strong facet contrast and crisp starburst returns under direct illumination. This sapphire has been shaped and finished to emphasize optical symmetry, with facet alignments that maintain a balanced scintillation pattern across the rectangular cushion plane, producing a consistent and broad flash pattern that flatters both open and closed settings.

The material properties of this sapphire support its visual appeal and practical durability, with a clarity grade of very slightly included evaluated at eye level, an indication that minor inclusions are present but do not materially interrupt the gem facing or diminish transparency. Because these internal characteristics are minimal, light transmission remains high and the stone exhibits a clean window free of large cavities or major clarity interruptions. The color is described as intense, a depth of tone and saturation typical of fine Ceylon provenance, showing a vivid medium to deep blue with subtle violet undertones that enrich the apparent hue in both diffuse and directional lighting. As a natural corundum, this sapphire will show pleochroism, commonly presenting slightly different blue to violet blue tones along its principal optic axes, and the mixed brilliant cut has been chosen to manage these optical variances into a pleasing color balance. Refractive index values for natural sapphire fall in the range associated with robust brilliance, and the stone benefits from that refractive environment together with its fine polish to deliver lively scintillation and a strong contrast between facet reflections.

No enhancement has been applied to this gem, the color and clarity are natural and untreated, a critical attribute for collectors and connoisseurs who prioritize intrinsic material qualities and long term provenance. The origin is Ceylon Sri Lanka, a source renowned historically for producing blue sapphires with a characteristic bright, velvety blue and a translucency that reads as both vivid and luminous under modern gemological lighting. Ceylon sapphires carry a long cultural and historical pedigree, having been integral to South Asian and European regal jewelry for centuries, used in coronets, amulets, and ceremonial rings where durability and symbolism were paramount. This stone echoes that lineage, offering a balance of heritage color profile and contemporary cutting technique that suits both period inspired mounts and restrained modern settings, making it a versatile choice for high level bespoke jewelry work.

At The Natural Sapphire Company we curate such pieces with attention to both gemological detail and historical context, sourcing material that meets strict criteria for cut, color, clarity, and origin, and presenting it with transparency about enhancements or the lack thereof. For the jeweler or collector intent on preserving the traditional narrative of Ceylon material while benefiting from modern lapidary standards, this 2.50 carat cushion blue sapphire represents a compelling intersection of provenance and precision. Its size and mixed brilliant geometry make it well suited to a variety of settings, from classic four prong solitaires that emphasize table brightness, to low profile three stone mounts that display depth, and to halo constructions that exploit the stone color while increasing visual scale. We can advise on mounting proportions and complementary metals to optimize color contrast and secure long term wearability, and we can provide condition images and further technical measurements upon request.