7.57 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This elegant gemstone is a transparent C.Dunaigre certified Blue, a 7.57 carat oval shaped sapphire, with precise dimensions of 12.74 by 9.63 by 7.63 mm. The stone was cut in a mixed brilliant style, combining an optimized crown and pavillion faceting scheme that balances scintillation and overall light return, and it displays an intense color intensity that is immediately striking. Originating from Ceylon, Sri Lanka, the sapphire exhibits the classic Ceylon character of vivid blue tone with bright, lively saturation, and it has undergone standard heat treatment to enhance tone and clarity. The specimen is graded as eye clean, evaluated at eye level, and its surface finish is described as excellent polish, ensuring a crisp, well defined interface between the facets and a smooth, reflective table plane.

The cutting quality is a principal attribute of this sapphire, and it is here that the gem asserts itself as a centerpiece. The mixed brilliant cut has been executed to accentuate the stone core and distribute light evenly across the oval surface, creating a field of scintillating light and a measured depth of color when viewed from multiple angles. Facet junctions are sharp and consistent, and the pavilion angles have been set to maximize internal reflection while preserving face up color. The result is a gem that offers lively brilliance without sacrificing the rich blue character typical of high quality Ceylon sapphires, and in practical terms this translates to a stone that captures attention in single stone settings and integrates harmoniously in multi stone designs.

Color and clarity considerations further reinforce the sapphire s suitability for refined jewelry applications. The intense blue shows a balanced mix of medium to strong saturation with a tone that avoids excessive darkness, allowing the stone to read as vibrantly blue in natural daylight and under indoor lighting. The eye clean clarity grade confirms that inclusions do not detract from the gem s appearance at normal viewing distance, supporting confident use in rings, pendants, or bespoke pieces where the stone will be worn frequently. At 7.57 carats and with the given proportions, this sapphire offers a substantial presence on the finger as illustrated in the accompanying photographs, while retaining proportions that are conducive to secure, elegant settings.

The Natural Sapphire Company presents this gem with full disclosure of its characteristics and provenance, supported by the C.Dunaigre certification that documents origin, treatments, and measured attributes. For clients and designers seeking a refined, well cut Ceylon sapphire, this stone combines important commercial and aesthetic qualities, including a recognized origin, excellent polish, a precise mixed brilliant cut, intense color, and eye clean clarity. Care recommendations are standard for corundum, and include routine cleaning with warm soapy water and a soft brush, avoidance of harsh chemicals and extreme thermal shock, and professional inspection of settings at periodic intervals. The Natural Sapphire Company can provide detailed imagery, mounting recommendations, and certification documentation upon request, enabling informed decisions for acquisition and bespoke design integration.