5.47 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This C.Dunaigre certified Blue sapphire from Ceylon with a weight of 5.47 carat presents as a transparent emerald cut measuring 11.07 x 9.13 x 5.65 mm, a classic step cut executed with precise symmetry and an emphasis on broad, parallel facets that produce clean, architectural flashes rather than scintillation. The stone shows medium color intensity, a balanced cornflower to slightly violet blue that reads evenly across the table and crown, owing to well controlled pavilion and crown depths. Clarity grade very slightly included evaluated at eye level translates to minimal internal features that do not interrupt the step faceting pattern or the window of color when mounted, and the excellent polish enhances light return and edge definition on the broad, rectangular facets. Heat treated to stabilize and optimize tone and saturation, this sapphire bears laboratory documentation from C.Dunaigre, and its origin of Ceylon is consistent with the soft, velvety medium blue hue and fine crystalline clarity associated with Sri Lankan material. The cutting demonstrates careful attention to facet junction consistency and table proportion, allowing the pavilion steps to act as precise mirrors that emphasize the stone geometry, while the truncated corners characteristic of an emerald cut contribute to both aesthetic balance and structural stability.

From a wearability perspective this sapphire is exceptionally suited for daily jewelry use, owing primarily to the inherent material properties of corundum and the sound cutting and finishing. Corundum rates 9 on the Mohs scale, second in hardness only to diamond, which confers strong scratch resistance for ring, bracelet, or pendant applications. The absence of perfect cleavage in sapphire and the robust nature of step cut geometry reduce the risk of cleavage related breakage, while the truncated corners and moderate crown height lower the profile and minimize catching. The heat treatment applied is a stable enhancement that does not compromise toughness, and the excellent polish reduces microabrasion over time. For everyday settings we recommend a protective bezel or low profile prong setting to shield the girdle and corners, combined with secure seating to avoid lateral impact, a practical approach that preserves the stone geometry and brilliance. The Natural Sapphire Company offers this gem with full provenance and imaging, presenting a technically refined, durable sapphire ideal for clients seeking a sophisticated, enduring daily wear centerpiece.