- Stone12
- Reports3
-round-blue-sapphire-1.1400-cts-s21997-1.jpg?d=200x200&v=20250311235414)
-round-blue-sapphire-1.1400-cts-s21997-1.jpg?d=200x200&v=20250311235414)
-round-blue-sapphire-1.1500-cts-s21997-lifestyleimage-1.jpg?d=200x200&v=20250326002903)
-round-blue-sapphire-1.1500-cts-s21997-lifestyleimage-2.jpg?d=200x200&v=20250326002903)








1.15 Ct. Blue Sapphire from Ceylon (Sri Lanka)
This loose stone is available to ship now
Item ID: | S21997 |
|---|---|
Dimensions (MM): help | Length: 6.31 Width: 6.33 Height: 3.67 |
Weight: | 1.15 Ct. |
Color: help | Blue |
Color intensity: help | Medium |
Clarity: help | Very Very Slightly Included |
Shape: help | Round |
Cut: | Mixed Brilliant |
Cutting style: | Faceted |
Enhancements: help | No Enhancement |
Origin: help | Ceylon (Sri Lanka) |
Per carat price: help | $600 |
This transparent one point one five carat round blue sapphire presents precise dimensions of six point three one by six point three three by three point six seven millimeters, a mixed brilliant cut, a clarity grade of very very slightly included as evaluated at eye level, medium color intensity, and an excellent polish, with no enhancement and an origin from Ceylon Sri Lanka. The mixed brilliant cut on a round outline denotes a crown faceting that follows a modified brilliant schema paired with a pavilion that incorporates step and modified facets, designed to balance light return and color saturation. The crown geometry and table plane have been executed to exacting standards, producing strong internal reflection and crisp facet junctions that contribute to pronounced scintillation. The gem is fully transparent, and the absence of enhancement confirms that the color and clarity are natural attributes of the stone as formed in Ceylon, a provenance renowned for producing sapphires with lively medium tones and clean material.
Color assessment for this sapphire emphasizes hue, tone, and saturation, with a core hue of pure blue complemented by subtle secondary modifiers characteristic of Ceylon material, creating a lively and appealing chromatic character. The medium color intensity provides an ideal balance between depth and brilliance, permitting the stone to exhibit a vivid blue under varied lighting while avoiding excessive darkness that can obscure detail. In a mixed brilliant cutting scheme the facet angles have been optimized to maximize color dispersion and evenness, so that the blue appears uniform across the table and crown facets when viewed face up. The evenness of color distribution is aided by controlled pavilion angulation and precise facet symmetry, minimizing windowing and causing the sapphire to read as consistently saturated in both diffuse illumination and directional lighting, making the color visually prominent when set in jewelry.
Clarity and cut performance are central to the gem s optical presentation, with the very very slightly included grade indicating inclusions that are difficult to detect at eye level and that do not interfere with light performance. The excellent polish enhances surface luster and allows facets to act as effective mirrors, increasing contrast and flash. Proportionally the stone exhibits a depth of three point six seven millimeters against an average diameter of about six point three two millimeters, yielding a depth ratio of approximately fifty eight percent, within the ideal range for round mixed cuts and conducive to strong light return and balanced face up appearance. The mixed brilliant design provides a harmonious interplay between brilliant style crown facets that contribute to sparkle and pavilion facets that support color saturation, resulting in both scintillation and a rich blue presence. Craftsmanship indicators such as even facet girdle alignment, consistent facet junctions, and a well centered table further attest to meticulous lapidary technique.
When considering settings and design, this sapphire s vibrant medium blue will stand out in any jewelry mounting due to its combination of color purity, optimized proportions, and natural origin, making it an excellent choice for solitaire rings, three stone arrangements, halo settings where the blue contrasts against white diamonds, and pendant applications where directional light enhances brilliance. Metal choice influences perceived color, with white gold and platinum offering a cool reflective backdrop that accentuates blue purity, while yellow gold can introduce warm contrast and visually intensify the stone s hue, and rose gold can create a modern juxtaposition that highlights saturation. A prong setting will maximize light exposure and sparkle, while a low bezel can emphasize the gem s outline and provide protection without unduly muting color when engineered with thin walls and polished inner surfaces. Pairing with small brilliant cut white sapphires or diamonds as accents will increase perceived size and frame the blue field, whereas pairing with colored melee can create tone on tone or complementary color narratives. From a practical standpoint sapphire s hardness of nine on the Mohs scale ensures excellent durability for everyday wear, and the absence of heat treatment enhances long term collector and resale value for connoisseurs who prioritize natural material provenance. The Natural Sapphire Company is pleased to present this Ceylon sapphire as an exemplar of natural color and superior lapidary execution, and our specialists can provide mounting recommendations and certification details to ensure that the gem s optical and material qualities are showcased to their fullest advantage.





-round-blue-sapphire-1.1400-cts-s21997-1.jpg?d=750x750&s=nsc&v=20250311235414)
-round-blue-sapphire-1.1500-cts-s21997-lifestyleimage-1.jpg?d=750x750&s=nsc&v=20250326002903)
-round-blue-sapphire-1.1500-cts-s21997-lifestyleimage-2.jpg?d=750x750&s=nsc&v=20250326002903)






















