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0.45 Ct. Blue Sapphire from Ceylon (Sri Lanka)
This loose stone is available to ship now
Item ID: | S42194 |
|---|---|
Dimensions (MM): help | Length: 5.96 Width: 4.42 Height: 2.5 |
Weight: | 0.45 Ct. |
Color: help | Blue |
Color intensity: help | Intense |
Clarity: help | Very 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 | $978 |
This 0.45 carat pear shape blue sapphire presents itself with precise proportions and laboratory grade characteristics that will satisfy technical buyers and connoisseurs, dimensions are 5.96 by 4.42 by 2.50 millimeters, the length to width ratio is approximately 1.35, and the depth percentage is approximately 48.1 percent, the cutting style is faceted with a mixed brilliant cut designed to balance optimal light return with maximal color saturation, the stone is transparent with intense color intensity and a clarity grade of very very slightly included evaluated at eye level, the polish has been executed to an excellent finish, the sapphire is untreated with no enhancement, origin is Ceylon Sri Lanka, and this gem has been carefully selected and presented by The Natural Sapphire Company. The pear outline was chosen to deploy color across a tapered plane, allowing the richer blue in the broader head to communicate depth while the narrower pavilion carries light through the point, those proportions and the precise pavilion and crown angles are a deliberate choice to marry scintillation with the vivid Ceylon hue.
Examining the faceting architecture reveals a mixed brilliant strategy, the crown employs a modified brilliant schema with a polished table of restrained diameter, star facets configured to channel light into the crown, and upper girdle bevels cut to create a harmonious interplay between flash and dispersed scintillation, the pavilion follows a brilliant pattern adjusted for the pear silhouette, facet junctions are aligned to a high degree of symmetry to avoid light leakage at the girdle, the girdle itself has been fashioned with a fine to medium faceting allowance to preserve weight while maintaining practical durability during setting, the cutter has emphasized pavilion angles that favor internal reflection rather than mere surface sparkle, this approach enhances perceived color intensity while retaining lively return, the result is a stone that presents a concentrated, even face color under direct light and exhibits lively scintillation when viewed in motion.
Clarity and finish are central to the gem technical profile, the very very slightly included grading assessed at eye level indicates that any inclusions are minute and do not disrupt transparency or the optical performance, under 10 times magnification one would expect to observe fine silk needles or minute mineral crystals localized along facet junctions, these characteristics are consistent with natural corundum from Sri Lanka and provide internal signatures that support the stone provenance, the insight this grants to the trained observer is valuable, microscopic inclusions in sapphires can corroborate sourcing and natural formation processes, they also act as a safeguard against over polishing or aggressive thermal treatment, speaking of polish the facet planes show an excellent mirror finish, facet junctions are crisp, and facet symmetry is tight, this level of lapidary control minimizes light scatter, maximizes contrast, and contributes to even colour distribution across the face of the pear.
The journey of this Ceylon sapphire from rough to market reflects an artisanal and ethical workflow, the stone was hand selected from responsibly mined rough in Sri Lanka by experienced selectors who prioritize crystal orientation and zoning analysis to determine the most advantageous cut, given the rough geometry the decision to execute a pear shape with mixed brilliant faceting was taken to preserve carat weight while optimizing color and brilliance, cutters oriented the pavilion to align with the stone's natural color concentration, inclusions were evaluated and worked around to maintain structural integrity and to ensure the final gem remained eye clean, during the preforming stage angles were established using optical instruments and a loupe to track light return, successive grinding and polishing passes were performed on calibrated laps to achieve the excellent polish and tight facet junctions, no heating or other enhancement was applied at any stage, the untreated nature of the piece retains full geological character, after cutting the stone underwent comprehensive assessment, dimensions, depth percentage, length to width ratio, and microscopic inclusion mapping were recorded, final grading for clarity color cut and polish was completed, a provenance note identifying Ceylon Sri Lanka was appended, the finished gem then entered the inventory of The Natural Sapphire Company where it is available for those who value technical precision, authentic origin, and artisanal craftsmanship, for jewelers seeking a stable and durable center stone the sapphire offers the practical benefit of corundum hardness nine on the Mohs scale making it suitable for daily wear within engagement rings and pendants, for clients desiring bespoke settings our team can provide facet matching and design guidance to preserve the gem geometry and enhance its optical performance.





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