0.97 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 0.97 carat round blue sapphire measures 6.08 x 6.10 x 3.27 mm, and it is a transparent, faceted gem cut in a mixed brilliant style, with a brilliant crown paired to a carefully proportioned pavilion that balances color saturation with light return. The mixed brilliant approach used on this stone optimizes the table and crown facet geometry to maximize scintillation while preserving depth of color, and the resulting optical performance is controlled and predictable for precision settings. Clarity is graded as eye clean when examined at normal viewing distances, indicating that any natural internal characteristics are minor and do not interrupt the visual plane. The polish is excellent, producing crisp facet junctions and a high surface lustre, while overall symmetry and proportioning were executed to maintain even facet alignment across the crown and girdle. Origin is Ceylon Sri Lanka, and the stone has been heat treated, a standard and stable enhancement in the trade, disclosed and executed to enhance tone and hue without compromising durability.

Color presents as vivid in intensity, with a pure blue core that displays subtle shifts under various lighting environments, moving from a lively Ceylon blue in daylight to a slightly richer tone in warmer incandescent conditions. The mixed brilliant faceting encourages a dynamic interplay between face up brilliance and deep blue saturation, so the stone reads as vivid rather than overly dark, and it carries a medium to medium deep tone that makes it versatile for rings and other jewelry. Slight pleochroic tendencies are present, as is common with corundum, and they contribute to directional color that can be used deliberately in setting orientation to achieve the desired visual effect. Heat treatment has stabilized chromophore distribution and reduced minor silk or rutile traces, improving overall transparency and evenness of color distribution. For the connoisseur who evaluates tone, saturation, and hue precisely, this gem offers an exemplary example of what quality Ceylon material can achieve within the sub one carat size class.

The gemstone exhibits craftsmanship quality suited for both fine jewelry and collector study, with facet edges that show minimal wear and a polish grade that enhances both contrast and windowing control. The mixed brilliant design was chosen to retain weight and face up presence in a compact round outline, while the pavilion angles maintain internal reflection efficiency, reducing leakage and enhancing apparent size under common viewing conditions. As a corundum species, sapphire rates nine on the Mohs scale, making it highly wear resistant and suitable for daily wear in rings and bracelets, and the stable nature of the heat treatment means the visual improvements are permanent under normal conditions. Practical considerations for mounting include centering the table axis to the setting to exploit the directional pleochroism, and selecting a bezel or four prong head that secures the girdle without obscuring the crown face. The eye clean clarity at actual viewing distance ensures that the stone will display consistently attractive face up appearance when set, and The Natural Sapphire Company is available to provide lighting specific images and handling guidance for custom mounting.

In historical comparison, this Ceylon sapphire is to the storied blue gemstones what a refined interpretation is to a classical painting, it is not a large court jewel like the famously deep velvety Kashmir examples, which are renowned for their rare, soft, velour like saturation, nor is it a heavy, intensely saturated Burmese royal blue that leans toward a darker, more saturated presence, instead this stone echoes the luminous clarity and lively blue of well documented Sri Lankan pieces that have historically been prized for their brightness and distribution of tone. Relative to great sapphires recorded in gemological annals, the unique value of this gem lies in its combination of vivid color intensity, eye clean clarity, and expertly executed mixed brilliant cutting, which together translate into immediate wearable elegance and reliable optical performance. For collectors who appreciate provenance and documented enhancement, and for jewelers seeking a premium small round that performs like a larger stone due to superior cut and polish, this sapphire represents a compelling option. The Natural Sapphire Company stands behind the origin disclosure and treatment disclosure, and we invite you to request additional high resolution images or a light box video to evaluate the stone under the conditions you prefer.