0.99 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 0.99 carat oval blue sapphire from Ceylon Sri Lanka is an exceptional example of classical gemmological proportions and modern lapidary precision. The gem measures 6.32 by 5.33 by 3.52 millimetres, presenting an elegant oval silhouette with a length to width ratio of approximately 1.19. The weight sits just under one carat, a scale that provides a commanding face up presence while remaining highly versatile for a variety of mounting styles. The origin is Ceylon Sri Lanka, and the stone has been heat treated as an enhancement to stabilize and intensify the inherent blue hue. The Natural Sapphire Company presents this sapphire with full attention to its dimensional balance, noting that the oval outline and nearly one carat weight are ideal for a center stone that must read as a statement piece without appearing oversized for daily wear.

The faceting is a mixed brilliant cutting style, combining a brilliant crown with a modified pavilion architecture to optimize both scintillation and light return. The crown facets have been arranged to act as a light entry plane, breaking and redistributing incident light across numerous small facets to create lively sparkle. The pavilion exhibits a series of carefully calculated facets that control internal reflection and minimize windowing, yielding strong return of dark and bright patterning at typical viewing distances. The table to depth relationship produces a measured light performance, with the overall depth at 3.52 millimetres translating to approximately 60 percent of the average girdle diameter. This depth gives the stone a robust three dimensionality that enhances color saturation without sacrificing brilliance. Facet junctions are precise and the symmetry of the oval outline has been kept tight to avoid optical imbalance that can dilute perceived color or create unwanted flashes.

Color and clarity interplay in this sapphire to make it especially desirable as a focal gem. The color intensity is graded vivid, indicating a high saturation of blue that remains richly saturated face up, even under mixed lighting. Observed tones sit in the medium to deep blue range with subtle cool undertones that read as a pure blue with a gentle violet bias in some lighting. This chromatic profile is consistent with premium Ceylon material and benefits from the mixed brilliant cut which concentrates color in the face up view. Clarity is evaluated as very very slightly included at eye level, which in practical terms means that inclusions are minimal and do not interfere with light transmission or the gemmological integrity of the stone. The excellent polish contributes to crisp facet windowing and maximum reflective return, so that the combination of vivid color and high polish yields a bold but refined visual impact. Heat treatment has been applied to enhance uniformity of color while preserving natural inclusions that authenticate origin and natural growth.

From a practical design and setting perspective the dimensions and clarity make this sapphire especially well suited to roles requiring a strong visual statement. The 6.32 by 5.33 millimetre table projects a presence comparable to a true one carat stone, offering designers a straightforward scale for solitaire rings, classic three stone compositions, or halo settings that amplify apparent size. The clarity grade and excellent polish mean that open settings such as four prong or six prong solitaires will showcase internal light play and color without the need for heavy bezelling which can mute brilliance. For clients seeking maximum durability and protection the stone adapts well to low profile bezels or secure rubover settings, with the caveat that bezels will alter light entry and slightly reduce scintillation. The Natural Sapphire Company recommends metal choices that complement the vivid blue saturation, for example platinum or 18 carat white gold to maintain cool contrast, or 18 carat yellow gold to create a warmer visual frame. For bespoke commissions our team can advise on facet orientation to the setting and on mounting techniques that preserve the stone geometry while optimizing face up color and brilliance. This sapphire is presented ready for design integration, and its combination of near one carat weight, precise mixed brilliant faceting, vivid Ceylon color, and very very slightly included clarity make it a natural choice for a lasting and immediately recognizable statement piece.