9.88 Ct. Purple Star Sapphire from Ceylon (Sri Lanka)

One translucent oval purple star sapphire weighing 9.88 carat is offered through The Natural Sapphire Company, presented in a classic cabochon form that emphasizes its asterism and body color. The oval measures 12.81 by 11.06 by 7.16 mm, with a carefully proportioned dome to maximize the six rayed star effect. Clarity at the eye level is graded as very slightly included, which supports both the movement of light through the stone and the clarity of the star, without distracting surface blemishes. Color is described as vivid in intensity, a saturated purple that maintains depth across the profile, and the polish is excellent, producing a high gloss finish over the dome. No enhancement has been applied, and origin is Ceylon, Sri Lanka, a provenance known for fine asteriated sapphires.

The cabochon cut and the internal needle like rutile silk that produces the star are complementary in this specimen, the dome height and symmetry delivering a well centered and distinct six rayed star. The star is sharp under directional light, and the silk distribution is sufficiently dense to form continuous rays that intersect centrally, while the translucent body allows some light transmission that gives the stone an inner glow. The vivid purple body color contrasts with the lighter, silvery rays, enhancing visibility of the star. Very slight inclusions at the eye level are present, yet they do not materially interfere with the star pattern or the overall appearance when mounted and viewed at normal observation distance.

Performance under different lighting is an important attribute for star sapphires, and this gem responds predictably yet attractively across typical conditions. Under bright, direct sunlight or a single focused point light source, the six ray star appears crisply defined, the rays bright and linear, crossing exactly at the dome apex, the contrast between the silvery ray and the purple ground strongest in this setting. In diffuse daylight the star softens, the rays become more diffused, and the stone reveals its full body color, showing a uniform vivid purple that reads richly in larger compositions. Under warm incandescent lighting the star can appear slightly warmer in tone, with the body color leaning toward the redder end of purple, while cool white LED lighting tightens the star edge and emphasizes the silvery sheen. Spot lighting or a lamp with a small filament will produce the most dramatic stellation, and rotating the stone relative to the light will allow the star to glide across the dome, a dynamic familiar to collectors and connoisseurs.

For practical use in jewelry this 9.88 carat cabochon is well suited to a center stone role in a ring or a pendant where the star can be oriented to the top and kept horizontal to the dominant light source. The excellent polish supports strong surface reflection and contributes to an elegant, mirror like presentation when mounted. Because this sapphire has no enhancement, it retains natural stability with routine care, and gentle cleaning with warm soapy water and a soft brush is recommended, avoiding harsh chemicals and aggressive mechanical cleaning. The Natural Sapphire Company can provide documentation of origin and the gemological attributes on request, and our recommendations for setting aim to preserve the centered star and to present the vivid purple body color to best effect.