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1.52 Ct. Green Sapphire from Kenya
This loose stone ships by Nov 2
Item ID: | S48358 |
|---|---|
Dimensions (MM): help | Length: 6.27 Width: 5.72 Height: 4.26 |
Weight: | 1.52 Ct. |
Color: help | Green |
Color intensity: help | Intense |
Clarity: help | Very Very Slightly Included |
Shape: help | Asscher - Octagon |
Cut: | Asscher Cut |
Cutting style: | Faceted |
Enhancements: help | Heat Treated |
Origin: help | Kenya |
Per carat price: help | $1,000 |
This transparent green sapphire presents as a precisely faceted asscher octagon, weighing 1.52 carats, with dimensions of 6.27 by 5.72 by 4.26 mm. The cutting style is faceted with an asscher cut that emphasizes step facets and an octagonal outline. Clarity has been evaluated at eye level as very very slightly included, a designation that reflects minimal internal characteristics that do not detract from the gem at normal viewing distances. Color registers as intense green, with saturation and tone balanced to present a vivid yet natural hue. The polish has been graded excellent, yielding crisp facet junctions and consistent luster across the pavilion and crown. The sapphire has been heat treated, a widely accepted enhancement applied to stabilize and intensify color, and its documented origin is Kenya, as recorded by The Natural Sapphire Company.
The story of this sapphire begins deep within the continental crust millions of years ago, where aluminum rich rocks experienced profound heat and pressure during regional metamorphism. Under these extreme conditions aluminum oxide molecules organized into the dense crystal lattice of corundum, a process that requires both time and a chemically favorable environment to produce gem quality material. Trace elements present in the local geochemistry became included as the corundum lattice formed, and those trace elements determined the way light would later be absorbed and transmitted, resulting in the green color that defines this stone. Over protracted geological time scales tectonic uplift transported the host rocks closer to the surface, where weathering and erosional processes liberated gem bearing fragments from their primary matrix. Secondary concentration through alluvial sorting collected higher quality fragments in sediment accumulations, which later served as sources for the rough material that was eventually recovered within Kenyan deposits.
When the rough reached the lapidary stage, the asscher cut octagon was selected to maximize the interaction between the sapphire s internal color distribution and its clarity characteristics. The asscher cut employs a series of concentric step facets that create a controlled hall of mirrors effect, favoring depth and clarity over scintillation. For a stone with very very slight inclusions and intense color, this cutting style enhances the perception of depth and allows even distribution of light across the pavilion, producing a strong, saturated face up color while preserving internal features from drawing visual attention. The dimensions of 6.27 by 5.72 by 4.26 mm reflect careful proportioning to balance table size, crown height, and pavilion depth, which supports even light return and consistent color saturation. The excellent polish further refines optical performance, reducing surface diffusion and ensuring facet planes communicate light with minimal scattering. Heat treatment applied to this sapphire has been performed to optimize hue and remove color zoning, and the result is a stable, attractive green that is common and accepted in the trade when documented and disclosed.
Provenance and responsible sourcing are integral to the documentation provided by The Natural Sapphire Company, which records this stone as originating from Kenya. The geology of Kenyan deposits is consistent with the metamorphic and erosional processes described, and the rough was processed and evaluated under standard gemological procedures that include visual clarity assessment and disclosure of enhancements. For use in fine jewelry, the asscher octagon profile lends itself to settings that showcase shape symmetry and color depth, including single stone mounts and collet or bezel settings that protect the girdle while exposing the crown to light. The combination of a 1.52 carat weight, intense green color, very very slightly included clarity at eye level, and excellent polish provides a balanced package of optical and physical attributes, suitable for applications where a refined appearance and measured durability are required. The Natural Sapphire Company provides documentation of these characteristics as part of standard practice, supporting informed selection and long term enjoyment of the gemstone.































