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1.22 Ct. Tourmaline from Ceylon (Sri Lanka)
This loose stone is available to ship now
Item ID: | K18568 |
|---|---|
Dimensions (MM): help | Length: 7.81 Width: 5.83 Height: 4.03 |
Weight: | 1.22 Ct. |
Color: help | Greenish Yellow |
Color intensity: help | Intense |
Clarity: help | Very Very Slightly Included |
Shape: help | Oval |
Cut: | Mixed Brilliant |
Cutting style: | Faceted |
Enhancements: help | No Enhancement |
Origin: help | Ceylon (Sri Lanka) |
Per carat price: help | $400 |
This greenish yellow tourmaline is a precisely documented and carefully evaluated specimen offered by The Natural Gemstone Company, weighing 1.22 carat, cut into an oval outline with calibrated dimensions of 7.81 by 5.83 by 4.03 millimeters, and presenting a depth that measures approximately 59 percent relative to its average diameter. The faceting style is a mixed brilliant cut, chosen specifically to balance intense color saturation with optimal light return, and the finish is described as excellent polish, with facet junctions rendered crisp and free of polishing graining. Clarity is graded as very very slightly included at eye level, a designation that reflects the practical visual experience of the gem when set or viewed unaided, and enhancement analysis confirms no treatments or enhancements have been applied. Origin is recorded as Ceylon Sri Lanka, a location noted for producing tourmalines with distinctive warm green to yellow tones, and the gem presents an intense color intensity with a greenish yellow hue that remains vivid under a range of lighting conditions.
The journey of this tourmaline begins in the alluvial gravels and gem bearing pockets of Sri Lanka where artisanal and mechanized mining operations recover rough fragments from weathered host rock. From the moment of extraction the rough material is photographed and catalogued to preserve provenance records, and initial sorting is performed to evaluate internal zoning, fracture patterns, and the directionality of color distribution. Raw pieces destined to become above average transparent stones undergo orientation analysis, during which experienced lapidaries determine the best axis along which to preform to capture the most saturated tone while minimizing windowing and extinction. This tourmaline showed favorable optical orientation with relatively uniform coloration along one axis, allowing cutters to plan a mixed brilliant design that takes advantage of the crown facets to disperse light and the pavilion geometry to channel return to the viewer. Each stage of the transformation from rough to gem is documented, and the decision to maintain the stone unenhanced was based on the quality of the original material, preserving natural chemistry and structural integrity.
Cutting and finishing were carried out by experienced craftsmen using a sequence of preforming, faceting, and polishing steps tuned to the material properties of tourmaline. The mixed brilliant approach applied here incorporates a brilliant style crown with carefully proportioned kite and star facets to maximize scintillation, combined with a modified pavilion geometry to control internal reflection and avoid windowing that can dilute color intensity. Table size and crown height were calibrated to balance brilliance against color preservation, and the girdle was left at a medium thickness to facilitate secure setting without unnecessary loss of weight. Polishing progressed through progressively finer abrasives and diamond impregnated laps, concluding with high grade cerium and oxide compounds where necessary to achieve the excellent polish reported. The very very slightly included clarity reading at eye level indicates that inclusions are minute and non distracting in typical jewelry contexts, often consisting of tiny healed fractures or isolated mineral crystals that do not interrupt the flow of light. The intense color intensity is a function of both intrinsic trace element chemistry and the precision of the cut, resulting in a greenish yellow body color that displays subtle pleochroic shifts when viewed at different angles, a characteristic behavior of tourmaline that adds to the gemological interest of the piece.
On arrival to market the stone is accompanied by comprehensive provenance and treatment statements from The Natural Gemstone Company, and is presented with professional imagery and measurements to aid designers and collectors in decision making. For designers considering contrast and harmony the tourmaline pairs exceptionally well with White Opal as an accent stone, with the White Opal type offering a soft milky body color and potential play of color that can be used to emphasize the warm greenish yellow center, particularly in settings where the opal is faceted or cabochon cut to provide textural contrast. This tourmaline requires no enhancement and is suitable for bespoke ring work, pendant use, or collector study, and the documented origin from Ceylon Sri Lanka adds an additional layer of historical and geographical interest for connoisseurs. The Natural Gemstone Company ensures traceability and ethical sourcing throughout the supply chain, and this 1.22 carat oval greenish yellow tourmaline is offered as a ready to set natural gem for buyers who value technical excellence in cutting, clarity, and color, and who appreciate the meticulous process by which a Sri Lankan rough is transformed into a precisely cut, intensely colored, and highly polished gemstone.




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