1.05 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This sapphire is a transparent 1.05 carat cushion shape specimen, measuring 6.41 by 5.34 by 3.31 mm, originating from Ceylon Sri Lanka and offered by The Natural Sapphire Company. The cutting style is a mixed brilliant cut, combining a faceted crown that uses modified brilliant geometry with a pavilion that incorporates both brilliant and subtle step facet elements. The color presents with vivid intensity, a deep saturated blue with slight variations that are characteristic of high quality Ceylon material, and the finish is described as excellent polish. The stone has been heat treated, a standard and stable enhancement for blue sapphire that improves color homogeneity and minimizes the visibility of minor inclusions, while the clarity grade is very slightly included when viewed at eye level, confirming excellent transparency for immediate visual impact.

From a faceting and light performance perspective, the mixed brilliant treatment on a cushion outline has been executed to optimize return and color saturation. The cushion form allows for a slightly larger table relative to overall outline, which enhances face up color while the strategic placement of brilliant facets on the crown produces lively scintillation. The pavilion retains angled facets that catch and return light through the table, producing a balance of brilliance and color. Proportions are close to ideal for this format, with a measured depth that supports both internal reflection and retention of the vivid Ceylon hue, resulting in strong contrast between bright facet flashes and deep color windows. Facet junctions are precise, and the facet plan has been arranged to minimize windowing and to distribute color evenly across the table, an important consideration for cushion shapes where uneven facet alignment can produce localized dark areas.

The clarity and finishing details of this sapphire contribute directly to both aesthetics and structural performance. The very slightly included classification at eye level indicates that inclusions are minor, typically very small crystals or thin rutile needles that are partially oriented or localized, and they do not interrupt the stone's overall transparency or its optical performance. The cutter has oriented the stone to place any internal features away from the table and main light paths, which reduces visual impact and enhances apparent clarity. The excellent polish means facet surfaces are smooth and reflective, improving brilliance and ensuring clean facet intersections that will not abrade or catch during normal wear or setting. The girdle has been finished to a consistent thickness that supports secure setting without excess risk of chipping, and the pavilion termination has been executed to avoid excessive stress points, all of which are important when mounting for jewelry.

Regarding durability and suitability for daily wear, sapphire is one of the hardest gem materials available for jewelry, second only to diamond on the Mohs scale with a hardness of nine, and this specimen benefits from that intrinsic resistance to scratching. Toughness in corundum is typically very good, and the skillful faceting and consistent girdle profile decrease the likelihood of mechanical weakness at the stone edges. The heat treatment applied to this sapphire is a stable enhancement that does not compromise hardness or toughness, however routine care recommendations should be followed to preserve finish and appearance. Clean with warm soapy water and a soft brush, avoid prolonged exposure to harsh chemicals or abrasive polishing pastes, and take care when performing activities that impart hard impacts to the mounting. For rings and other high impact jewelry, protective settings such as low profile bezels or well designed prong arrangements will further reduce risk from accidental knocks, while still allowing the mixed brilliant cut to deliver maximum light return. This well proportioned, vividly colored Ceylon cushion sapphire from The Natural Sapphire Company combines gemological quality, expert cutting, and robust physical properties to make it an excellent choice for daily wear in engagement rings and other frequently worn pieces.