2.93 Ct. Black Star Sapphire from Ceylon (Sri Lanka)

The Natural Sapphire Company is pleased to present a striking opaque black star sapphire, weighing 2.93 carats, with a classic round shape and dimensions of 7.54 by 7.49 by 4.65 millimeters, in a traditional cabochon cut, and an excellent polish that maximizes surface brilliance and the visibility of the star. This gem displays a well defined asterism, the six ray star characteristic of high quality star sapphires, created by silk like inclusions of rutile aligned within the crystal structure. The stone has a dark color intensity, which provides a dramatic backdrop that enhances the contrast and sharpness of the star when properly oriented to a single light source. There has been no enhancement applied to this gem, it is presented in its natural state, and this untreated condition significantly increases its desirability for collectors and connoisseurs who prioritize natural provenance and minimal human intervention. The origin is Ceylon Sri Lanka, a historic and respected source for sapphires that is known for producing material with clean crystallography and favorable optical phenomena.

Clarity has been evaluated at eye level and graded as very very slightly included, a clarity grade that indicates only the smallest inclusions are present to a trained eye and that they do not materially detract from the overall appearance or the asterism. For cabochon cut star sapphires, the distribution, orientation, and density of rutile needles are more important to the visual effect than complete transparency, and this specimen exhibits an excellent balance between silk content and polish, allowing a crisp, well centered star without significant cloudiness. The cabochon dome has been shaped to present the star optimally, with symmetry and proportion chosen to support the gem optics. When evaluating this stone, an educated buyer will note that the eye level clarity grading confirms that surface reaching fissures or large inclusions are absent, which supports both aesthetic appeal and structural integrity. The excellent polish reduces surface diffusion of light, increasing the perceived sharpness of the star and the depth of the black body tone.

Provenance from Ceylon Sri Lanka adds context and value, since Ceylon sapphires have a long established market reputation and a geological history that produces stones with desirable optical qualities, including well developed asterisms in some black and blue varieties. The lack of heat treatment or other enhancements is particularly significant for buyers focused on natural gem material, because untreated Ceylon material is comparatively rare in the market and commands a premium. From a gemological standpoint, this black star sapphire benefits from the hardness and durability inherent to corundum, with a Mohs hardness of nine, which makes it appropriate for a range of jewelry settings including rings and pendants when mounted with proper protection. The cabochon shape and excellent polish reduce the risk of chipping compared to faceted styles, while the dark color intensity provides a bold design element that pairs sympathetically with polished metals and contrasting accent stones.

For educated buyers looking for collectible quality, this untreated 2.93 carat Ceylon black star sapphire represents a combination of optical rarity, documented clarity, and natural origin that supports long term desirability. When compared to other gem types, the asterism in star sapphires is a distinctive optical phenomenon that cannot be replicated by simple faceting, and the interplay between silk density and body color is fundamental to value assessment. For buyers considering complementary gems, it is worth noting the differences in aesthetic and gemological behavior, for example the opal type White Opal is known for its light body tone and play of color, a very different optical character from the metallic like asterism of a black star sapphire, and collectors often pair these stones in designs that highlight contrast between subdued metallic stars and lively opal fire. The Natural Sapphire Company is committed to providing detailed gemological descriptions and can arrange independent laboratory reports on request, so that provenance, treatment status, and grading can be independently verified, ensuring transparency and confidence in your purchase. If you would like additional images, viewing under directed light to see the star, or assistance with setting recommendations, our team will be glad to advise you.