2.10 Ct. Greyish Blue Cabochon Star Spinel from Ceylon (Sri Lanka)

This translucent greyish blue star spinel weighs 2.10 carat, and is presented in an oval silhouette with dimensions of 8.98 by 7.06 by 3.63 millimeters. The cutting style is cabochon, executed to a domed, symmetrical profile that favors the display of optical phenomena, and the surface has been brought to an excellent polish. The stone exhibits medium color intensity, in a balanced greyish blue tone that allows the asterism to read distinctly while maintaining attractive body color, and the overall clarity has been graded very slightly included at eye level. There has been no enhancement applied to this material, and the gem is documented as originating from Ceylon, Sri Lanka. The combination of measured weight, precise dimensions, cabochon cutting, unenhanced status, and Sri Lankan origin provides a clear, verifiable set of attributes for appraisal and comparison.

The internal features of this spinel are best understood as the stone specific signature, rather than imperfections to be eliminated, and they contribute materially to both identification and character. At eye level the field is very slightly included, with fine oriented inclusions and subtle growth structures that appear as delicate linear and feathery features beneath the dome. These internal markers serve as natural identifiers, because the pattern, orientation, density, and interaction of such features reflect the gem s growth environment and thermal history. Under magnification the inclusions show organized alignment that coincides with the visible asterism, and the subtle variation in translucency across the cabochon highlights natural zoning and fabric within the crystal. The presence of these features aids gemological assessment, and supports origin attribution to Ceylon Sri Lanka when evaluated in conjunction with color, crystal habit, and surface characteristics. The overall eye level clarity remains appealing, the inclusions do not detract from the visual effect, and they ultimately add complexity and authenticity to the gem s appearance.

The asterism exhibited by this cabochon is a natural optical phenomenon generated by oriented internal features, and it presents as a distinct, six rayed star that traverses the surface as the light source or viewing angle changes. The star like rays are crisp and well centered across the dome, extending from a compact central point and fading smoothly into the body color, which allows the star to remain visible under common lighting conditions without overpowering the stone s inherent hue. The interaction between the domed cabochon profile, the excellent polish, and the aligned inclusions produces a controlled, repeatable effect, so that the star moves predictably with the light and snaps into relief when illuminated from above. The result is an intelligible asterism that serves both as a decorative attribute and as a diagnostic feature for gemological study. This specimen is offered with full specification and provenance data by The Natural Gemstone Company, presented in a manner intended to inform collectors, practitioners, and connoisseurs who value transparent detail and objective description.