0.93 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This specimen is a transparent 0.93 carat round blue sapphire, with calibrated dimensions of 5.85 x 5.84 x 3.66 mm, originating from Ceylon Sri Lanka, and presented by The Natural Sapphire Company. The gem exhibits a mixed brilliant cut executed to exacting proportions, and a measured depth of approximately 62.6 percent based on the average diameter. This depth lies squarely within the range that balances light return and face up color saturation for round sapphires. The color grade is medium intensity blue, consistent with classic Ceylon material that favors a lively, medium tone rather than a very dark or very light presentation. Clarity is graded as very very slightly included when evaluated at eye level, indicating inclusions are minute and do not disrupt the face up window, and the polish is assessed as excellent, indicating superior lapidary finishing with clean facet planes and minimal surface disturbance.

The mixed brilliant faceting strategy applied to this stone pairs a classic brilliant crown, with star, bezel, and upper girdle facets arranged to distribute light, with a modified pavilion geometry that controls extinction and enhances scintillation. This approach allows for strong central brilliance and a dynamic contrast pattern as the stone moves, while the pavilion design works to disperse light into measured flashes of spectral color without overpowering the core blue hue. The very very slightly included clarity grade means the crown and table are free of obvious inclusions under typical viewing, and the excellent polish preserves crisp facet junctions so that light passages remain uninterrupted. Heat treatment has been applied as a standard enhancement to optimize the blue saturation and to reduce the visibility of fine silk or other internal features, a well established and disclosed practice in the trade that stabilizes color and improves overall clarity while respecting the natural origin of the sapphire.

From a practical design and wear perspective this 0.93 carat round Ceylon sapphire is exceptionally versatile, suitable for both casual daily wear and refined formal settings. Corundum hardness ensures durable performance for rings, studs, pendants, and small three stone settings, and the round mixed brilliant profile sits low enough to be comfortable in bezel or low prong mounts for everyday use, while responding beautifully to open prong and cathedral settings that maximize brilliance for formal occasions. The medium blue color pairs elegantly with white metals where contrast and perceived brightness are desired, and it also complements yellow and rose gold for a warmer, more vintage aesthetic. At under one carat and with its nearly perfect round outline and excellent polish, it is ideal as a classic solitaire for a delicate engagement ring, as an accented center in a halo to amplify apparent size, or as a refined stud for day to day wear. The Natural Sapphire Company discloses the heat treatment and origin, and our gemological sourcing aligns provenance with lapidary practice to deliver a balanced combination of color, clarity, cut, and durability that appeals to discerning buyers who value technical refinement and practical versatility.