1.57 Ct. Reddish Orange Sapphire from Ceylon (Sri Lanka)

This sapphire presents a clearly defined set of gemological attributes that will be immediately useful to a jeweller or collector. It is a transparent, oval shaped sapphire weighing 1.57 carats, with calibrated dimensions of 7.16 x 5.96 x 4.15 millimetres. The stone exhibits a reddish orange hue with vivid color intensity, and it has been fashioned with a mixed brilliant cut that balances table and crown facets to enhance scintillation. Clarity is described as very very slightly included when evaluated at eye level, indicating minimal visual inclusions to the unaided eye. The polish has been assessed as excellent, producing smooth facet junctions and lively surface reflection. The sapphire has undergone lattice diffusion enhancement, a treatment applied to improve and stabilise its color, and its origin is Ceylon, Sri Lanka, a region long respected for producing sapphires with lively saturation and attractive tone.

The mixed brilliant cut of this oval sapphire contributes directly to its optical performance in everyday wear. The crown and pavilion facet arrangement moderates contrast between brilliance and dispersion, allowing flashes of orange and red to appear as the gem moves under varied lighting, while the oval outline produces an elegant silhouette when set into a mounting. The measured dimensions and depth support balanced light return, which means that when the stone is viewed face up it tends to display consistent saturation rather than dark or washed out zones. With a clarity grade of very very slightly included at eye level, the inclusions are sufficiently minor that they do not disrupt the pattern of reflected light, preserving the stone’s visual purity and the integrity of its color. The excellent polish further ensures that surface reflections are crisp, and that the gem will interact with interior light to create the pleasing luster expected from a high quality sapphire.

The lattice diffusion enhancement applied to this sapphire is an important characteristic to acknowledge and to understand, because it changes how the stone acquired its vivid color. Lattice diffusion is a legitimate and widely used treatment in the trade, and it involves the controlled introduction of color forming elements to the crystal lattice during heat processing. This treatment is stable under normal wear and household care, and it is not affected by routine cleaning or exposure to light. Disclosure of enhancement is part of responsible gem trading, and The Natural Sapphire Company provides transparent information about treatments, so a buyer can make an informed decision. The origin of Ceylon, Sri Lanka, contributes additional context for the gemstone, since Sri Lankan sapphires are known for their refined color tones and historical significance. Provenance, combined with documented treatment disclosure and accurate description of clarity and cut, supports the gem’s standing when it is included in formal jewellery or in a private collection.

Owning this sapphire represents an investment in beauty and craftsmanship rather than a speculative financial play. The gem’s measured proportions, vivid reddish orange coloration, mixed brilliant cutting style, and precise polish reflect the work of experienced cutters who have balanced retention of weight with optical performance. When set into bespoke jewellery, this sapphire will function as a carefully considered centrepiece that highlights both material quality and artisanal skill. For collectors and connoisseurs, a well described and disclosed gem from Ceylon with stable enhancement is attractive because it combines rarity at this size and color with verified attributes that support long term desirability. The Natural Sapphire Company stands behind the accuracy of the description and offers documentation that helps preserve the gemstone’s provenance and value over time. With routine professional cleaning and sensible care, this sapphire will retain its vivid presence and continue to exemplify the meticulous workmanship that defines exceptional coloured gemstones.