- Stone10
- Reports3
-fancy-purplishblue-cobaltspinel-1.3800-cts-k9548-1.jpg?d=200x200&v=20241203234140)
-fancy-purplishblue-cobaltspinel-1.3800-cts-k9548-1.jpg?d=200x200&v=20241203234140)
-fancy-purplishblue-cobaltspinel-1.3800-cts-k9548-lifestyleimage-1.jpg?d=200x200&v=20241212051303)







1.38 Ct. Purple Spinel from Ceylon (Sri Lanka)
This loose stone ships by Jul 27
Item ID: | K9548 |
|---|---|
Dimensions (MM): help | Length: 7.06 Width: 6.01 Height: 4.42 |
Weight: | 1.38 Ct. |
Color: help | Purple |
Color intensity: help | Medium |
Clarity: help | Very Slightly Included |
Shape: help | Pear |
Cut: | Mixed Brilliant Cut |
Cutting style: | Faceted |
Enhancements: help | No Enhancement |
Origin: help | Ceylon (Sri Lanka) |
Per carat price: help | $1,159 |
This transparent, 1.38 carat, pear shape purple spinel measures 7.06 by 6.01 by 4.42 millimeters, and presents a precision mixed brilliant cut that balances table and pavilion facets to optimize light return. The gem is graded very slightly included evaluated at eye level, indicating that inclusions are minimal and do not materially interrupt transparency or sparkle in normal viewing. Color strength is described as medium intensity, showing an even, saturated purple tone that benefits from the stone s natural translucency and exacting proportions. The polish is excellent, ensuring crisp facet junctions and clean surface reflections, and the piece is completely natural with no enhancement, sourced from Ceylon Sri Lanka. The Natural Gemstone Company presents this stone with full disclosure of origin and treatment status, and with photographic and measurement detail to assist with accurate evaluation.
In practical terms the reflective qualities of this spinel are governed by its optical character and the quality of the cut. Spinel is an isotropic mineral, so light behaves uniformly regardless of viewing direction, producing consistent color and a clear, unambiguous pattern of facet reflections. The mixed brilliant cut on this pear shaped stone creates lively scintillation from small, rapid flashes where light hits the crown facets, while broader flashes and a well defined face up brightness come from the pavilion configuration. Compared to other spinels in its category, this gem exhibits the expected vitreous to subadamantine luster with a slightly crisp, gemlike brilliance that is exceptionally clean because of the very slightly included clarity and the excellent polish. When set alongside corundum family gems such as sapphire and ruby, spinel typically returns light in a slightly different way, because corundum has a higher refractive index which can produce a marginally stronger brilliance and dispersion. Spinel s advantage lies in its optical isotropy, which yields sharper facet contrast and no directional color variation, and in many cases greater purity of eye visible color without the pleochroic banding that can be present in sapphire. Against garnets, which cover a wider range of refractive behavior depending on species, this spinel generally shows a cleaner, steadier appearance and a more uniformly controlled scintillation, while some garnets may offer stronger single flashes or deeper saturation depending on composition.
For practical use and long term wear the combination of the spinel s hardness and the refined cutting make it a robust choice for a range of jewelry designs. Spinel rates as an 8 on the Mohs scale, which provides reliable resistance to everyday wear while still allowing careful setting and finishing by professional jewelers. The pear outline with mixed brilliant faceting favors headfirst light entry that enhances fire and scintillation for stones of this size, and the lack of enhancement and documented Ceylon origin contribute to its desirability among collectors and designers who prioritize natural material and provenance. The clarity grade of very slightly included evaluated at eye level means the gem reads clean face up, and the medium color intensity is versatile enough to complement both warm and cool precious metal palettes. For those seeking a natural colored stone that balances brilliance, durability, and a refined, pure color character, this purple spinel is an exemplary choice, available with full documentation from The Natural Gemstone Company.




-fancy-purplishblue-cobaltspinel-1.3800-cts-k9548-1.jpg?d=750x750&s=ngc&v=20241203234140)
-fancy-purplishblue-cobaltspinel-1.3800-cts-k9548-lifestyleimage-1.jpg?d=750x750&s=ngc&v=20241212051303)
















