1.53 Ct. Bi Color / Parti Sapphire from Ceylon (Sri Lanka)

This oval 1.53 carat bi color parti sapphire from Ceylon Sri Lanka is a study in natural complexity and refined craftsmanship, it measures 6.99 x 6.26 x 4.73 millimeters and has been faceted in a mixed brilliant style to present both lively scintillation and controlled color zoning, the gem is transparent with a light color intensity and carries a clarity grade of very very slightly included, evaluated at eye level, the polish is excellent and there has been no enhancement, this unheated provenance is an important point for collectors and connoisseurs because Sri Lanka has a long established history of producing sapphires with exceptional hue and character, The Natural Sapphire Company is proud to present this stone as an example of the rare class of natural bi color sapphires that display distinct and attractive color partitioning within a single crystal, the oval outline offers a classic and wearable silhouette that also maximizes perceived size for the carat weight.

The mixed brilliant cut chosen for this stone combines a brilliant facet arrangement on the crown with modified pavilion faceting to optimize both fire and light return, the mixed design in a transparent, high clarity sapphire can generate a lively play of light that differs from the high dispersion flash associated with diamond, while diamonds refract and disperse light to a greater extent because of their higher refractive index, sapphires display a more satiny brilliance and stronger color presence when cut sensitively, compared to other common gems such as aquamarine and topaz, this sapphire benefits from a higher refractive index and harder surface, the result is stronger contrast between light and dark facet areas which enhances scintillation, the gem measures 4.73 millimeters in depth, which yields a depth proportion of approximately 71 percent relative to its average diameter, that slightly deeper profile supports the expression of the parti tones and creates a pleasing stage for the mixed brilliant facets to throw both pinpoint sparkle and broader flashes of light.

Clarity and treatment status are central to value assessment for educated buyers, the very very slightly included grade reported at eye level indicates that the stone appears visually clean to the unaided eye despite the presence of minute inclusions observable under higher magnification, these minimal inclusions do not interfere with light performance and in many cases act to orient and define the color zoning without causing cloudiness, because this sapphire is unenhanced and unheated, it retains its natural crystal state, that absence of treatment is a notable premium in the marketplace, many sapphires are heat treated to improve color and clarity, therefore a natural, unheated Ceylon parti sapphire offers superior provenance and a clearer narrative for collectors who prize natural state and traceable origin, excellent polish further contributes to the gem s ability to return light to the viewer, every facet meeting is clean and well defined to support maximum brilliance and to showcase the two tone character with clarity and precision.

From a practical and investment perspective this 1.53 carat Ceylon parti sapphire represents several compelling attributes for the informed buyer, first its origin from Sri Lanka situates it within a well recognized source known for producing both classic cornflower blues and highly desirable parti stones, second the combination of transparency and VVS clarity in an unheated specimen is uncommon and supports both aesthetic enjoyment and long term value, third the mixed brilliant cut and substantial depth allow for a dynamic visual effect that is distinct from single hue sapphires, this stone will display a different visual personality depending on light angle and setting choice, sapphires are rated 9 on the Mohs scale which makes them highly suitable for everyday wear in rings and other jewelry, routine care is straightforward with warm soapy water and a soft brush, professional cleaning will restore full brilliance when needed, The Natural Sapphire Company stands behind the integrity and origin of this sapphire and can provide certification and detailed imagery to support appraisal and insurance, for collectors and discerning clients who value traceable origin, natural state, and refined cutting, this oval bi color parti sapphire offers a singular combination of beauty, rarity, and durability.