1.57 Ct. Yellow Sapphire from Ceylon (Sri Lanka)

This transparent 1.57 carat oval yellow sapphire measures 8.06 by 6.09 by 3.65 millimeters, it has been precision cut in an oval outline with a mixed brilliant facet architecture that pairs a brilliant style crown with a modified step pavilion, the result is measured balance between face up fire and optimal color presentation, the table and crown proportions have been tailored to reveal an intense yellow hue without sacrificing scintillation, the girdle and culet have been managed to retain weight and symmetry, the surface displays an excellent polish, the clarity is graded very slightly included at eye level, and the stone is beryllium diffused to achieve its intense hue, provenance is Ceylon Sri Lanka, the stone is offered and fully disclosed by The Natural Sapphire Company.

Optical performance is a defining attribute of this sapphire, the mixed brilliant cutting strategy increases the return of white light across the table and crown facets while the step influenced pavilion facets control color saturation through measured light leakage, the result is an intense and even yellow face up color with lively scintillation under direct light and smooth, warm tone in diffuse illumination, this sapphire exhibits the typical refractive behavior of corundum, with high refractive index and noticeable brilliance, pleochroism in yellow sapphires is generally weak to moderate, and here the cutter oriented the pavilion and crown planes to minimize color zoning and to present a consistent, intense color when set, the cut dimensions also make this gem ideal for a central engagement piece or a refined pendant that benefits from precise optical balance.

Clarity and treatment are described with transparency and technical accuracy, the grade of very slightly included evaluated at eye level indicates that the stone contains small naturally occurring internal features that do not materially detract from its brilliance or overall appearance, microscopic examination reveals minute pinpoint and linear inclusions consistent with natural corundum growth patterns, these inclusions function as internal fingerprints that confirm natural origin while remaining unobtrusive to the naked eye, the stone has undergone beryllium diffusion enhancement, a process that introduces trace beryllium into the corundum lattice under high temperature conditions to intensify yellow coloration, this treatment is durable and stable to normal wear and cleaning, the presence of enhancement is fully disclosed by The Natural Sapphire Company, and documentation regarding origin and treatment can be provided for review, the Ceylon provenance contributes to the stone character, as Sri Lankan sapphires are prized for their clear, lively colors and clean growth patterns.

From a craftsmanship and setting perspective, this sapphire offers versatile design options informed by its proportions and optical behavior, the oval outline and 8.06 by 6.09 millimeter dimensions translate to a flattering table silhouette for both left and right hand presentation, the mixed brilliant geometry rewards open prong settings that allow light to enter through the pavilion, while a low bezel can protect the girdle without overly muting the face up brilliance, warmer metals such as 18 carat yellow gold will harmonize with the intense yellow, providing a saturated, sunlit aesthetic, cooler metals like platinum or white gold will create a contemporary contrast that emphasizes clarity and scintillation, for designers seeking to emphasize crown facet fire, a halo of small brilliant cut diamonds or white sapphires will amplify scintillation, for a more botanical or vintage feel, tapered baguette accents aligned with the long axis will extend visual length, when commissioning a custom mount provide the precise measurements and the mixed brilliant cut profile so that seat and bezel heights can be calculated to protect the girdle and to align the stone axis with intended finger geometry.

There is a romantic narrative woven into the technical character of this gem, the intense yellow color evokes the first light that breaks over the highlands of Ceylon, it is easy to imagine the sapphire holding within its facets a captured sunrise, clarity graded as very slightly included suggests a life that is honest and lived, small internal marks are like the gentle memory lines of shared days, together they make a stone that is luminous yet human, The Natural Sapphire Company presents this stone as more than a measured set of metrics, it is a memento of place and process, a jewel that married technical cutting discipline with natural materiality to create a luminous token of commitment, for the buyer who values provenance, precise cutting specifications, and full treatment disclosure, this 1.57 carat Ceylon yellow sapphire offers a rare combination of intense color, excellent polish, and stable enhancement, we invite you to request the full report and imagery, and to discuss setting options so that the finished piece will reflect both the technical virtues and the romantic story you wish to carry forward.