9.02 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This C.Dunaigre certified Blue 9.02 carat asscher octagon shape blue sapphire measures 10.56 x 10.56 x 8.46 mm, and presents as a transparent gemstone with a medium color intensity, very very slightly included clarity as evaluated at eye level, and an excellent polish. The stone originates from Ceylon Sri Lanka and has undergone standard heat treatment enhancement to stabilize and improve its blue hue. The asscher cut has been executed on an octagonal outline to emphasize clarity and step facet interaction, producing a restrained but deep visual color saturation that is characteristic of high quality Sri Lankan material. The certification by C.Dunaigre accompanies the gem to document weight, dimensions, origin, enhancement status, and observational clarity grading at eye level, providing technical assurance for connoisseurs and collectors.

From a faceting and optical performance perspective the asscher cut on this sapphire leverages parallel concentric step facets on the crown and pavilion to create a pronounced hall of mirrors effect, with repeating rectangular reflections that travel inward from the bezel to the culet. The square outline with cropped corners, combined with a balanced table to depth ratio based on the supplied dimensions, produces controlled light return rather than excessive scintillation, favoring depth of color and internal contrast over the flash typical of brilliant cuts. The step facets require precise facet junctions and alignment to avoid windowing and to manage the directionality of blue saturation, and the excellent polish indicates meticulous finishing that enhances facet definition and reduces light leakage at facet interfaces. Inclusions are described as very very slightly included at eye level, and due to the step cutting style these are positioned and oriented to have minimal impact on overall visual performance, remaining difficult to detect without magnification and maintaining clean open windows across the crown.

In terms of wearable design and gifting impact this 9.02 carat Ceylon sapphire offers significant presence on the finger while preserving classical proportions suitable for a range of settings. The asscher octagon silhouette reads as both vintage and architectural, recalling Art Deco sensibilities while remaining adaptable to modern bezel or prong settings that accentuate step facet geometry. At 10.56 mm across the table the gem commands attention and displays its medium color intensity consistently under ambient light, making it especially striking for ceremonial or milestone gifts where a combination of technical refinement and aesthetic distinction is desired. The Natural Sapphire Company presents this stone as a statement piece for discerning recipients who value documented origin, expert cutting, and traditional enhancement disclosure, and we can assist with setting recommendations that respect the asscher facet pattern to maximize the hall of mirrors effect and maintain optimal light return. Please contact The Natural Sapphire Company for additional photographs at standardized lighting conditions, to review the C.Dunaigre certificate, or to discuss bespoke mounting options that will ensure this exceptional sapphire becomes a memorable and enduring gift.