0.75 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This transparent 0.75 carat oval blue sapphire measures 6.80 by 4.48 by 3.21 millimeters, presenting a length to width ratio of approximately 1.52 to 1, and a depth of about 57 percent relative to the average diameter. The stone is cut in an oval outline with a mixed brilliant faceting scheme, combining a brilliant faceted crown with a more geometric pavilion. The color is described as vivid in intensity, with a strong, saturated blue that reads both lively and deep depending on viewing angle. Clarity is graded very very slightly included when evaluated at eye level, indicating that inclusions are minimal to the unaided eye and do not materially interrupt the visual performance. The polish is excellent, yielding crisp facet junctions and a lively surface reflection. Origin is Ceylon Sri Lanka, and the sapphire is natural with no enhancement reported, an important attribute for the discerning buyer who prioritizes untreated material.

The mixed brilliant cut employed here is a purposeful compromise between optical performance and preservation of natural rough. The crown is executed with brilliant style facets to enhance scintillation and to break light into numerous small flashes, while the pavilion exhibits a controlled faceting pattern designed to optimize return and reduce light leakage common in ovals. The facet geometry yields a pleasing balance between sparkle and color delivery, where smaller crown facets increase visible scintillation and the pavilion angles channel light back through the table rather than allowing excessive return to the girdle. The oval outline minimizes windowing when set in typical face up orientations, and the relatively shallow to medium depth aids in presenting more face up color while maintaining good light return. Excellent polish ensures minimal surface abrasion and superior facet reflections, which is particularly important with high saturation colors so that surface finish does not mute perceived vividness.

Color characteristics are central to this sapphire. The vivid intensity denotes a high saturation with a medium to slightly deep tone, providing an ideal balance where the hue reads distinctly blue without shifting toward overly dark or blue black. Ceylon origin sapphires are often prized for a lively cornflower to vivid blue range, and this specimen exhibits the clarity of hue and clean saturation associated with that classic appearance. Sapphire pleochroism is evident in-hand, with subtle shifts between slightly lighter and slightly deeper blue tones as the stone is tilted, an effect amplified by the mixed brilliant faceting. The no enhancement status preserves the natural chromophore distribution and makes this piece particularly attractive to connoisseurs who value untreated color. When set in reflective metal choices, such as a neutral white setting or a warm yellow tone, the stone translates differently, so consideration of mounting design will directly influence perceived hue and vibrancy.

Inclusions in this sapphire are presented as unique identifiers rather than imperfections to be obscured. At the very very slightly included grade, the internal features are fine and sparse, offering microscopic to minor eye level markers that can serve as a gemological fingerprint. Typical Ceylon inclusions may include tiny mineral crystals, fine rutile silk, and healed fluid inclusions, and these micro features in this stone provide provenance clues and individuality. The inclusions interact with light to create subtle internal texture and midtone diffusion, which can soften flashes and add depth to the overall appearance. For practical handling the minimal nature of these inclusions means normal jewelry use is expected without undue risk, but careful setting and routine inspection are recommended to preserve polish and facet integrity. The Natural Sapphire Company offers documentation and imaging to accompany the gem, assisting in identification and provenance. This 0.75 carat oval Ceylon sapphire is particularly well suited to a solitaire or halo ring where the mixed brilliant cut can maximize both scintillation and saturated face up color, or as a refined center for a bespoke piece crafted to showcase its untreated character.