- Stone14
- Reports3














1.17 Ct. Purple Sapphire from Madagascar
This loose stone ships by Sep 11
Item ID: | S37878 |
|---|---|
Dimensions (MM): help | Length: 6.16 Width: 6.16 Height: 4.16 |
Weight: | 1.17 Ct. |
Color: help | Purple |
Color intensity: help | Medium |
Clarity: help | Slightly Included |
Shape: help | Round |
Cut: | Mixed Brilliant Cut |
Cutting style: | Faceted |
Enhancements: help | No Enhancement |
Origin: help | Madagascar |
Per carat price: help | $1,000 |
This transparent 1.17 carat round purple sapphire measures 6.16 x 6.16 x 4.16 mm, and it has been fashioned in a mixed brilliant cut to maximize both color saturation and light return. The mixed brilliant design combines a brilliant facet arrangement on the crown with a stepped pavilion architecture, producing lively scintillation across the table and controlled color depth through the lower facets. The measured pavilion depth of 4.16 mm yields a depth ratio of approximately 67.5 percent relative to the diameter, a proportion that sits well within the range that preserves strong return of light while allowing the medium color intensity to remain vivid without appearing overly dark. Clarity is graded as slightly included when evaluated at eye level, and the excellent polish on all facets results in crisp facet junctions and minimal surface disturbance, so the small natural inclusions are discreet and do not significantly interrupt the visual flow of light through the stone. This sapphire is unenhanced, and its Madagascar origin is a current marker of quality in the market, as the region has produced gems with attractive hue and clarity in recent years.
From a craftsmanship perspective, the cutter has balanced crown angle and pavilion proportion to optimize the interaction between color and brilliance. The mixed brilliant philosophy employed here places smaller crown facets to enhance scintillation, while the pavilion step planes are arranged to deepen the purple hue without creating unwanted color zoning. The excellent polish contributes to exceptional light transmission, and facet symmetry is executed to maintain uniform flash patterns across the table and girdle. The slightly included clarity grade reflects natural crystal relationships and tiny crystal inclusions that are typical for sapphires from primary and secondary deposits, and these inclusions in this specimen do not compromise structural integrity. The medium color intensity is a technical advantage for purple sapphires, because it provides a balance between saturation and light performance, enabling the gem to read consistently under different lighting conditions, including daylight and incandescent sources. The absence of heat or other enhancements preserves the stone in its natural state, which is a key technical attribute for collectors and connoisseurs who prioritize original formation characteristics and unaltered trace element signatures.
As an investment grade offering, this unenhanced Madagascar purple sapphire presents several attributes that favor future appreciation. Natural, untreated sapphires command a premium in the marketplace because untreated material is inherently rarer and cannot be replicated by treatments that many sellers use to enhance color and clarity. Madagascar provenance has become increasingly important to collectors, as historical supply constraints and rising demand from both private collectors and the high end jewelry trade have tightened the market for top grade material. The precise cutting that optimizes both light return and color saturation adds marketability, because well cut stones tend to hold value better than poorly proportioned equivalents. For investors who evaluate colored gemstones alongside classic asset classes, certified, unenhanced stones with transparent clarity and robust provenance are among the most liquid of colored gemstone segments, particularly when accompanied by robust documentation from reputable laboratories and an established seller. The Natural Sapphire Company provides provenance and treatment disclosure as part of the sale, which supports market confidence and resaleability.
For acquisition and long term value management, consider certification and documented appraisal to accompany the stone, and consider professional setting options that enhance protection and presentation without obscuring the gemstone attributes that drive value. Holding periods of multiple years generally align with the colored gemstone market cycle, during which supply constraints and collector demand can have material impact on prices. The combination of transparent clarity, mixed brilliant cutting, medium color intensity, excellent polish, lack of enhancement, and Madagascar origin creates a balanced profile between visual desirability and rarity, and positions this 1.17 carat round purple sapphire as a technically sound acquisition for both connoisseurs and investors. For additional technical data, laboratory reports, and bespoke setting options, please contact The Natural Sapphire Company, and we will provide full provenance documentation and tailored advice to align this piece with your collection or investment objectives.































