2.63 Ct. Blue Cabochon Sapphire from Ceylon (Sri Lanka)

This cushion shaped blue sapphire from The Natural Sapphire Company presents as a translucent, sugar loaf cut gem weighing 2.63 carats, with exact dimensions of 7.68 x 6.08 x 5.49 mm. The sugar loaf profile produces a high domed pavilion and a softly rounded girdle plane that reads as a traditional cushion silhouette in profile, while the apex forms a shallow triangular facet on the crown. Origin is Ceylon Sri Lanka, enhancement is heat treated, clarity is graded Included at eye level, color intensity is Intense, and polish is Excellent. The combination of intense color and translucent body gives the stone a saturated yet soft appearance, allowing color depth to remain the dominant visual attribute when the gem is viewed in hand or set in jewelry.

From a faceting and geometry perspective the stone exhibits the characteristic mass retention strategy of sugar loaf cutting, where material conservation and color concentration take precedence over light return efficiency. The length to width ratio calculated from the supplied dimensions is approximately 1.26, producing a gently elongated cushion silhouette that will sit well in slightly rectangular bezel designs. The depth of 5.49 mm relative to the mean of the length and width yields a robust dome percent near eighty percent, which explains the limited mirror like facets and the emphasis on transmitted color rather than sharp facet contrast. The crown apex and the soft transitions between the rounded facets produce broad reflections and localized specular highlights, while the high quality polish enhances surface luster and minimizes diffusion losses across the dome.

Clarity of Included evaluated at eye level indicates the presence of visible internal features that are typical for Ceylon sapphires, such as fine silk inclusions and occasional minute crystals or feathers, which in this specimen act to scatter light and contribute to the stones overall translucency. Heat treatment in this piece has likely improved the uniformity of color and reduced the visibility of silk without materially altering the intrinsic character of thegem, a common and stable enhancement in natural sapphires from Sri Lanka. Color grading as Intense reflects both saturation and tone, with a rich medium to medium dark blue that leans toward classic Ceylon blue rather than deep velvety or heavily inky tones, producing good adaptability to a range of metal colors and mounting styles while retaining strong presence in daylight and artificial light sources. Translucency means that the stone will display color from both the surface and through its body, so background and setting influence are important considerations.

For setting and design recommendations, the stones sugar loaf shape and high dome suggest a bezel or collet style mounting to secure the rounded girdle and to shelter the dome, while a closed back may be used intentionally to intensify appearance when paired with dark foil or metal, and an open back will allow more light interaction for a slightly brighter look. Prong settings can be used but require custom prong geometry to accommodate the domed crown and to avoid excessive movement, therefore we generally recommend working with a jeweler experienced in non standard cabochon and sugar loaf mounts. At The Natural Sapphire Company we document origin and treatment, and we can advise on complementary design choices, matching accent stones, and the impact of metal choice on perceived color. If you would like additional photographs under different lighting conditions, a short video, or guidance on setting options and certification, please contact our gem specialists and we will provide detailed technical assistance tailored to this particular sapphire.