1.78 Ct. Peach Sapphire from Ceylon (Sri Lanka)

This cushion shape sapphire weighs 1.78 carats and measures 7.01 by 6.48 by 4.65 millimeters, presenting a compact and substantial face up area relative to its weight. The stone is transparent with a faint color intensity that results in a delicate peach appearance, and its clarity is graded very very slightly included when evaluated at eye level, indicating inclusions that do not interfere with the immediate visual impact of the gem. The pavilion and crown show an excellent polish across all facets, and the stone is entirely natural with no enhancement, originating from Ceylon Sri Lanka. The combination of these parameters yields a gem that occupies a technical sweet spot for collectors seeking a naturally colored sapphire that retains both gemological integrity and practical wearability.

The gem has been fashioned in a mixed brilliant cut, a faceting scheme that combines the light performance of brilliant facets with the color management of step facets. The crown is organized with smaller, controlled brilliant facets to maximize scintillation while preserving the delicate peach tone, and the pavilion incorporates a modified brilliant arrangement that enhances return of light and minimizes windowing. The cutter respected the crystal orientation to address pleochroism inherent in corundum, aligning the table slightly off axis when necessary to optimize the most desirable face up hue. Proportions are calibrated to an overall depth in the vicinity of sixty nine percent based on the supplied measurements, a depth that balances light return and face up spread, while the girdle thickness is consistent to provide secure setting without excessive weight loss. Facet junctions are crisp, and the polish quality is evident in the uniform reflection and lack of abrasion, attributes that are measurable under 10 times loupe magnification and that contribute to the overall grading of the piece by standard gemological criteria.

From a geological perspective this peach sapphire records a complex history that began many millions of years ago in a convergent margin environment that produced high grade metamorphism of aluminous sedimentary protoliths in the island now known as Sri Lanka. Under sustained heat and pressure, aluminum rich layers recrystallized and expelled silica poor melts and fluids, creating pockets and fractures with the chemistry necessary for corundum growth. Trace quantities of chromium imparted pinkish tones while iron and other trace elements shifted the hue toward orange to create the characteristic peach coloration, a result of subtle variations in trace element concentration and the oxidation state during crystal growth. Growth occurred slowly, permitting the development of transparent, well ordered crystal lattice that minimizes structural defects, and during crystallization the gem trapped fluid and crystalline inclusions that now serve as diagnostic internal features. Uplift and erosional processes over geological time liberated crystals from their primary metamorphic matrix and reworked them into alluvial gravels and secondary deposits, where natural tumbling and abrasion rounded forming crystal edges prior to recovery by miners and careful sorting by experienced gemologists.

The Natural Sapphire Company presents this sapphire with full attention to both provenance and lapidary decisions, and the absence of enhancement is central to its value proposition for discerning buyers. From a setting perspective the faint peach tone is enhanced by warm metals, and the mixed brilliant faceting means the gem offers dynamic scintillation while maintaining a soft face up color, making it suitable for bezel or prong settings that preserve the crown angles and protect the girdle. Technically minded purchasers will appreciate the measured approach to facet design that preserves pleochroic variance and prioritizes optical symmetry, as well as the intact polish indicating careful preforming and final polishing sequences that used progressively finer laps to eliminate polish lines and to achieve smooth facet planes. For connoisseurs comparing this stone to other sapphires, its combination of natural color, eye level clarity, classic cushion proportions, and Sri Lankan origin presents a coherent profile that is both scientifically transparent and aesthetically refined, and this sapphire is offered through The Natural Sapphire Company with documentation of origin and treatment history consistent with industry best practice.