6.17 Ct. Bluish Purple Star Sapphire from Ceylon (Sri Lanka)

This exceptional translucent bluish purple star sapphire weighs 6.17 carats, and is fashioned in a classic round shape with precise dimensions of 8.90 x 8.93 x 6.93 mm. It is cut as a cabochon to best display the characteristic star effect, and it presents a medium color intensity that balances saturation and brilliance for an elegant, wearable tone. The clarity grade is slightly included, evaluated at eye level, which means the stone is free of distracting blemishes to the unassisted eye while still exhibiting natural internal features that testify to its authenticity. The polish is excellent, giving the surface a finely finished lustre that enhances the stone’s optical performance and the sharpness of the star. Importantly, this sapphire has no enhancement, it is natural and untreated, and its documented origin is Ceylon, Sri Lanka. At The Natural Sapphire Company we highlight these specifics because they matter to collectors and connoisseurs who value transparency, verifiable origin, and untreated material.

From a gemological perspective, several aspects of this piece merit attention from an educated buyer. The cabochon cut is the traditional and technical choice for star sapphires, because the parallel oriented silk inclusions that create asterism need a smooth, domed surface and precise symmetry to produce a distinct, centered star. The medium color intensity of this bluish purple tone sits in a highly desirable range, where the hue remains vivid without appearing dark or overly saturated, allowing the star to contrast well against the bodycolor. Slightly included clarity, evaluated at eye level, indicates that inclusions are present but not detrimental to the gem’s visual appeal, and in the case of star sapphires, certain inclusions are the very cause of the asterism, adding to the gem’s individuality and natural provenance. The excellent polish contributes to strong light return across the dome and helps maintain a crisp, mobile star that responds to light and movement. A natural, untreated star sapphire from Ceylon, Sri Lanka commands a premium relative to treated material, because its optical phenomena and color are wholly the result of natural formation, not laboratory intervention.

For the conscious consumer assembling a considered collection, this star sapphire aligns with ethical priorities and long term value. The Natural Sapphire Company sources material from Sri Lanka through established supply lines that emphasize traceability and responsible practices, and we are able to document origin and treatment status for this gem. Choosing an untreated Ceylon star sapphire supports the preservation of natural rarities and reduces demand for high intensity treatments, while documented origin allows collectors to make informed decisions about provenance and stewardship. Beyond sourcing, this piece fits into a mindful collection because its combination of natural asterism, moderate carat weight, and excellent polish makes it versatile for both bespoke fine jewellery and investment grade holdings. Its untreated state and clear documentation enhance resale and trade potential, particularly among buyers who prioritize natural origin and minimal human alteration. Practical care for this sapphire is straightforward, regular gentle cleaning with warm soapy water and a soft brush will preserve the bodycolour and maintain the star, and setting considerations should respect the cabochon form, orienting the dome to maximize the star effect when worn.

In summary, this 6.17 carat round bluish purple star sapphire from Ceylon, Sri Lanka is a rare natural specimen that combines aesthetic charm with gemological integrity. Its cabochon cut, medium color intensity, slightly included clarity evaluated at eye level, excellent polish, and absence of enhancement make it a distinguished choice for an informed buyer. At The Natural Sapphire Company we present this gem with full disclosure of its characteristics and origin, because educated collectors and conscious consumers value both beauty and provenance. This sapphire represents an opportunity to own a naturally occurring optical phenomenon, ethically sourced and prepared for incorporation into a lasting, considered collection.