- Stone14
- Reports2
-rough-yellow-sapphire-12.3500-cts-s39748-1.jpg?d=200x200&v=20260319190440)
-rough-yellow-sapphire-12.3500-cts-s39748-1.jpg?d=200x200&v=20260319190440)
-rough-yellow-sapphire-12.3500-cts-s39748-lifestyleimage-1.jpg?d=200x200&v=20260428002003)
-rough-yellow-sapphire-12.3500-cts-s39748-lifestyleimage-2.jpg?d=200x200&v=20260428002003)
-rough-yellow-sapphire-12.3500-cts-s39748-lifestyleimage-3.jpg?d=200x200&v=20260428002003)
-rough-yellow-sapphire-12.3500-cts-s39748-lifestyleimage-4.jpg?d=200x200&v=20260428002003)








12.35 Ct. Yellow Sapphire from Ceylon (Sri Lanka)
This loose stone ships by Oct 16
Item ID: | S39748 |
|---|---|
Dimensions (MM): help | Length: 30.64 Width: 6.91 Height: 6.76 |
Weight: | 12.35 Ct. |
Color: help | Yellow |
Color intensity: help | Light |
Clarity: help | Slightly Included |
Shape: help | Various |
Cut: | Rough Crystal |
Cutting style: | Rough |
Enhancements: help | No Enhancement |
Origin: help | Ceylon (Sri Lanka) |
Per carat price: help | $20 |
This yellow sapphire is a finely described example of natural gem material, presented by The Natural Sapphire Company. It weighs 12.35 carats, with dimensions measuring 30.64 by 6.91 by 6.76 millimeters. The piece is translucent, exhibiting a light color intensity that recalls pale honey and soft sunlight. The stone retains a rough crystal cut, an elongated and irregular profile that follows the natural habit of the original crystal. Clarity is graded as slightly included when evaluated at eye level, indicating the presence of internal features that are visible to careful inspection but that do not unduly compromise the stone s overall visual appeal. The surface finish is of excellent polish, the facet and plane surfaces responding to light with a pleasing subtlety, and the sapphire has undergone no enhancement, retaining its completely natural state from formation to presentation.
The journey of this sapphire begins in the gem gravels and primary pegmatites of Ceylon, Sri Lanka, a region with a long and well documented history of producing yellow sapphire material. Formed over geological time through the action of heat and pressure on aluminum rich mineral assemblages, sapphire crystals grow within host rock and later become concentrated through weathering and erosion. Local miners and sapphire prospectors recover such crystals by careful excavation and screening, often by hand, as part of artisanal and small scale mining operations managed with increasing attention to responsible practice. This particular crystal, noted in the field for its elongated morphology and warm, pale hue, was extracted with minimal disturbance to its crystal terminations, a characteristic that informed the decision to retain a rough crystal cut during the subsequent cutting process.
At the cutting bench, the rough crystal cut was chosen to preserve the unique linear character and substantial weight of the material. Rather than pursue maximal faceting and weight reduction, the cutter worked to shape the sapphire into a form that balances wearability with the retention of natural form, respecting both the internal inclusions and the direction of color saturation. The result is a various shape stone that offers an organic silhouette and a strong length to depth ratio. The slightly included clarity grade was managed through strategic orientation and polishing, so that the most attractive face presents with minimal visual distractions to typical viewing angles. The polishing stage achieved an excellent surface luster, enhancing light return and providing a refined touch to the otherwise naturalistic presentation. Importantly, no heating or chemical treatments were applied, so the stone remains in its original, untreated state, a factor that can be critical for collectors and connoisseurs who prioritize natural provenance.
Following cutting and polishing, the sapphire underwent a measured process of evaluation and documentation. The gem was inspected at eye level to determine clarity, and measurements were recorded to the hundredth of a millimeter, reflecting a commitment to precise specification. The weight of 12.35 carats, combined with the recorded dimensions, allows jewelers and designers to plan settings that accommodate the stone s elongated profile, whether in bespoke ring mountings, pendant designs that emphasize length and movement, or cuff links and brooches where linear form complements button or bar components. The light intensity of the yellow hue favors settings in warm metals, and the absence of enhancement allows designers to market the final piece with clear disclosure regarding treatment status. All documentation prepared by The Natural Sapphire Company includes these specifications and confirms the origin as Ceylon, Sri Lanka, providing traceability that supports provenance oriented purchase decisions.
The market journey concludes with careful handling, secure transit, and considered presentation. The sapphire is photographed and described in detail to match the stone s physical attributes with accurate representation, and provenance notes accompany the item to indicate source, treatment status, and the steps taken during cutting and evaluation. Packaging is designed to protect the gem while enabling immediate inspection, and records of the gem s measured properties are retained for future reference and certification if required. The Natural Sapphire Company maintains standards for responsible sourcing and client transparency throughout this process, ensuring that the stone arrives with both material integrity and supporting information. For buyers seeking a natural, untreated yellow sapphire with a distinctive elongated form, clear documentation, and an exacting polish, this 12.35 carat gem represents a considered option, and further technical details or viewing arrangements can be provided upon request.





-rough-yellow-sapphire-12.3500-cts-s39748-1.jpg?d=750x750&s=nsc&v=20260319190440)
-rough-yellow-sapphire-12.3500-cts-s39748-lifestyleimage-1.jpg?d=750x750&s=nsc&v=20260428002003)
-rough-yellow-sapphire-12.3500-cts-s39748-lifestyleimage-2.jpg?d=750x750&s=nsc&v=20260428002003)
-rough-yellow-sapphire-12.3500-cts-s39748-lifestyleimage-3.jpg?d=750x750&s=nsc&v=20260428002003)
-rough-yellow-sapphire-12.3500-cts-s39748-lifestyleimage-4.jpg?d=750x750&s=nsc&v=20260428002003)




















