0.89 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This round shape blue sapphire weighs 0.89 carat and measures 5.49 x 5.48 x 4.03 mm, offering a well balanced footprint for a delicate yet visible center stone. The gem is faceted with a mixed brilliant cut, a style that marries a faceted pavilion with a brilliant crown to maximize both scintillation and overall light return. At this size, proportional depth and table relationships are critical, and the mixed brilliant execution here yields lively dispersion and a pleasing play of light when set. Clarity is graded as very very slightly included when evaluated at eye level, which in practical terms means the stone is effectively eye clean, with only minimal internal features that do not detract from transparency or sparkle. The polish is excellent, which enhances the sensation of brightness coming from each facet junction, and the overall cutting quality supports strong brilliance for its medium color intensity. This sapphire has been heat treated, a common and stable enhancement used to improve hue uniformity and clarity in corundum, and the origin is Ceylon, Sri Lanka, which is reflected in the gem character.

Color wise this Ceylon sapphire sits in a pleasing medium tone of blue with a cool bias and a subtle violet leaning that contributes to a lively cornflower impression. Compared to classic Kashmir sapphires, which are renowned for a deep velvety blue with slightly darker tone and a plush, soft appearance, this Sri Lankan stone displays a brighter, more vivid complexion with greater light return and a more pronounced sparkle. Against high quality Burmese sapphires, which typically present a stronger, more saturated royal blue and sometimes a slightly darker tone, the Ceylon gem reads lighter and airier, offering a freshness that is particularly desirable for settings where brilliance and fire are key. Madagascar sapphires often span a wide spectrum, and the hue of this stone aligns closely with the lighter, more transparent examples from Madagascar, while remaining distinct through its characteristic Sri Lankan clarity and sparkle. Compared to American Montana sapphires that can show steely or pastel blue tones and sometimes a greenish bias, this Ceylon sapphire retains a purer blue with a touch of violet rather than gray, and compared to Australian material that can trend toward darker, inky green blue, the present stone is appreciably brighter and cleaner in tone.

For the educated buyer the value proposition of this gem rests on a combination of origin, optical performance, and disclosure. Ceylon sapphires are prized for their lively, medium toned blues that exhibit strong brilliance when well cut, and this example benefits from an excellent polish and a mixed brilliant geometry that makes the most of its 0.89 carat weight. The very very slightly included clarity at eye level means the stone will sit beautifully in a ring without visible inclusions, preserving aesthetic appeal and allowing metal and setting designs to complement rather than conceal the gem. Heat treatment is disclosed, and as a stable and widely accepted enhancement in the trade it improves uniformity and long term appearance without compromising durability, given corundum s inherent hardness that makes it well suited for everyday wear. From a design standpoint the stone s dimensions make it ideal for a refined solitaire, as the medium color intensity will read well in both white metal and yellow gold, and the mixed brilliant cut will contribute lively sparkle in movement. At The Natural Sapphire Company we prioritize transparent provenance and full disclosure, and we can arrange detailed imaging or independent laboratory documentation on request, to support confident purchase decisions by collectors and connoisseurs alike, and to ensure the gem s qualities are fully validated for long term satisfaction.