2.82 Ct. Purplish Blue Cabochon Star Sapphire from Ceylon (Sri Lanka)

This exquisite oval cabochon star sapphire weighs 2.82 carats, with dimensions of 8.18 by 7.33 by 4.80 millimeters, and presents a vivid purplish blue hue that is immediately arresting. The cutting style is a classic high dome cabochon, executed to precise proportions to maximize asterism and light return, and the gem displays an excellent polish that produces strong reflections across its surface. Clarity is graded as very very slightly included when evaluated at eye level, a designation that conveys exceptional transparency for a star sapphire, with inclusions limited to fine rutile silk that are primarily responsible for the stone s characteristic star. There has been no enhancement to this gem, it is natural and untreated, and its documented origin is Ceylon Sri Lanka, a source renowned for producing some of the most prized and collectible sapphires in the world.

The natural asterism on this stone is a defining feature and a key reason for its desirability among connoisseurs, under a single-point light source a sharp, luminous star appears to float on the dome, consisting of distinct star like rays that intersect at the gem s optical center. The rays are well defined and show a pleasing degree of contrast against the purplish blue body color, producing a star that is visible in photographs and becomes even more animated in hand when the stone or the light source is moved. This effect is created by oriented rutile needles within the corundum that reflect and scatter light in three symmetrical directions, and the result here is a stable, centered asterism with good star contrast, conditions that collectors and gem professionals recognize as indicators of quality in asteriated sapphires.

From a grading and valuation standpoint the combination of vivid color intensity, very very slight inclusion level, clean and centered asterism, and no enhancement makes this piece particularly significant for an educated buyer. The dimensions and weight offer an excellent carat yield for mounting, and the oval outline paired with a well proportioned dome enhances both wearability and the visibility of the star when the gem is set. Origin from Ceylon contributes to its provenance and market desirability, as Sri Lankan sapphires, especially untreated examples showing strong natural phenomena, are consistently sought after by collectors and high end jewelers. The Natural Sapphire Company stands behind the gem s natural origin and treatment status, and we can assist with further documentation or an independent lab report on request, to support resale, insurance, or inclusion in a curated collection.

This cabochon star sapphire is ideally suited to serve as the centerpiece in a bespoke ring, pendant, or brooch, with setting recommendations that allow a singlepoint light to reveal the full asterism while protecting the high dome and preserving the integrity of the polish. A raised bezel or open back mount can maximize the star s visibility, while thoughtful metal color selection can complement the purplish blue saturation and draw attention to the stone s unique optical display. For collectors seeking an investment grade phenomenon gem, and for designers creating a statement piece that balances classical asterism with modern color appeal, this natural Ceylon star sapphire offers a rare combination of aesthetic presence, gemological quality, and verified untreated provenance, and The Natural Sapphire Company is available to provide additional views, magnified images, and guidance on setting options to ensure the gem reaches its full potential in any collection.