8.03 Ct. Greyish Blue Star Sapphire from Ceylon (Sri Lanka)

This GIA certified star sapphire offered by The Natural Sapphire Company is an exceptional example of a natural, untreated material, weighing 8.03 carats, with dimensions of 11.09 by 9.49 by 6.59 millimeters. The gem is fashioned into an oval double cabochon cut which is the preferred shaping for maximizing asterism in star sapphires, and it displays a distinct six ray star when illuminated. Color is a greyish blue with dark color intensity which provides a strong contrast for the star, and the stone has an excellent polish that enhances light return and the crispness of the asterism. Clarity is graded as very slightly included, evaluated at eye level, a transparency description that indicates minor inclusions visible only under careful inspection and that do not detract from the overall appearance or the star effect. There has been no enhancement, and the gem is certified by GIA, which confirms both the natural origin of the corundum and the absence of treatment, giving educated buyers confidence in the gemological report and the long term value of the stone.

From a connoisseurs perspective this piece is valuable for several reasons. First, the combination of substantial carat weight and a strong, centered star in a double cabochon is rare, particularly in an untreated stone from Ceylon Sri Lanka, an origin celebrated for high quality sapphires and for producing classic star specimens. Second, the dark color intensity serves to anchor the asterism, producing a dramatic, visible star that moves smoothly across the dome with changing light, and the excellent polish ensures that surface reflections do not interfere with the star imagery. Third, the very slightly included clarity at eye level represents a practical trade off that preserves both weight and optical phenomena without compromising durability. For collectors and investors, a GIA report adds provenance and marketability, and untreated Ceylon star sapphires of this size are sought after for both aesthetic and investment reasons. If you are considering a museum quality addition or a distinctive piece for bespoke jewellery, this star sapphire from The Natural Sapphire Company offers a transparent gemological pedigree, classic origin, and the visual impact that defines exceptional star sapphires.